Amphenol JT/LJT Subminiature
Cylindrical Connectors
12-090-18
Amphenol
®
Amphenol JT Connectors
MIL-DTL-38999 Series II Crimp and
MIL-C-27599 Series II Solder
Amphenol LJT Connectors
MIL-DTL-38999 Series I Crimp and
MIL-C-27599 Series I Solder
Table of Contents
Description Page
Amphenol® JT/LJT General Information ............................................................................... 1
JT/LJT - The subminiature cylindrical for every application ................................................. 2
JT/LJT - Specifications .........................................................................................................3
JT/LJT - Insert availability and identification; alternate positioning .................................. 4, 5
JT/LJT - Insert availability and identification ........................................................................ 6
JT/LJT - Insert arrangements ....................................................................................... 7 – 11
JT - Crimp, JT00R (MS27472) wall mounting receptacle .................................................. 12
JT - Crimp, JTPQ00R (MS27497), wall mounting receptacle, back panel mounting ........ 13
JT - Crimp, JT01R, line receptacle ..................................................................................... 14
JT - Crimp, JT02R (MS27499), box mounting receptacle ................................................. 15
JT - Crimp, JTP02R (MS27508), box mounting recept., back panel mounting ................. 16
JT - Crimp, JT06R (MS27473), straight plug ..................................................................... 17
JT - Crimp, JTG06R (MS27484), straight plug with grounding fingers .............................. 18
JT - Crimp, JT07R (MS27474), jam nut receptacle ........................................................... 19
JT - Crimp, JTL07R, jam nut receptacle, miniature jam nut mounting dimensions ........... 20
JT - Crimp, JT08R (MS27500), 90° plug ............................................................................ 21
JT - Hermetic, JT00 (MS27475), wall mounting receptacle ............................................... 22
JT - Hermetic, JT02 (MS27476), box mounting receptacle ............................................... 23
JT - Hermetic, JT07 (MS27477), jam nut receptacle ......................................................... 24
JT - Hermetic, JTI (MS27478), solder mounting receptacle .............................................. 25
JT - Accessories, plug protection cap ................................................................................ 26
JT - Accessories, receptacle protection cap ...................................................................... 27
JT - Accessories, strain relief (crimp type) ......................................................................... 28
LJT - Crimp, LJT00R (MS27466) wall mounting receptacle .............................................. 29
LJT - Crimp, LJTPQ00R (MS27656) wall mounting receptacle, back panel mounting ..... 30
LJT - Crimp, LJT01R line receptacle .................................................................................. 31
LJT - Crimp, LJT02R (MS27496) box mounting receptacle .............................................. 32
LJT - Crimp, LJTP02R (MS27505) box mounting receptacle, back panel mounting ........ 32
LJT - Crimp, LJT06R (MS27467) straight plug .................................................................. 33
LJT - Crimp, LJT07R (MS27468) jam nut receptacle ........................................................ 34
LJT - Hermetic, LJT00 (MS27469) wall mounting receptacle ............................................ 35
LJT - Hermetic, LJT07 (MS27470) jam nut receptacle ...................................................... 36
LJT - Hermetic, LJTI (MS27471) solder mounting receptacle ........................................... 37
LJT - Accessories, plug protection cap .............................................................................. 38
LJT - Accessories, receptacle protection cap .................................................................... 39
LJT - Accessories, strain relief (solder type) ...................................................................... 40
JT/LJT - Crimp contacts, printed circuit board, wire wrap contacts (sockets) ................... 41
LJT - Printed circuit board, wire wrap contacts (sockets) .................................................. 42
JT/LJT - Printed circuit board, wire wrap contacts (pins) ................................................... 43
JT/LJT - Accessories, Universal “Header Assembly” for flex print or PCB mounting .. 44, 45
JT/LJT - Thermocouple contacts, plastic protection caps, sealing plugs .......................... 46
JT/LJT - Application tools ................................................................................................... 47
JT/LJT - Solder contact connectors ................................................................................... 48
JT/LJT - How to Order ........................................................................................................ 49
Specials - JT/LJT Connectors Types - Filter, Aquacon, Breakaway/Quick Disconnect ..... 50
Specials - JT/LJT Ground Plane Connectors ..................................................................... 51
Sales Office and Distributor Listing .................................................................................... 52
NOTE:
The connector products in this brochure were formerly known as Bendix® products. These products are now manufac-
tured and sold under the Amphenol® brand name. The name “Amphenol” will replace the name “Bendix” on products and
literature in the future.
See Amphenol catalogs on-line at: www.amphenol-aerospace.com
MS Number Page
MS20047............................... 39
MS20048............................... 38
MS27352............................... 26
MS27353............................... 27
MS27466............................... 29
MS27467............................... 33
MS27468............................... 34
MS27469............................... 35
MS27470............................... 36
MS27471............................... 37
MS27472............................... 12
MS27473............................... 17
MS27474............................... 19
MS27475............................... 22
MS27476............................... 23
MS27477............................... 24
MS27478............................... 25
MS27479............................... 12
MS27482............................... 22
MS27483............................... 24
MS27484............................... 18
MS27488............................... 44
MS27496............................... 32
MS27497............................... 13
MS27499............................... 15
MS27500............................... 21
MS27501............................... 38
MS27502............................... 39
MS27503............................... 25
MS27505............................... 32
MS27506-2 ........................... 28
MS27508............................... 16
MS27510............................... 26
MS27511............................... 27
MS27656............................... 30
Amphenol Aerospace is a Certified ISO 9001 Manufacturer
1
Amphenol® JT/LJT
high reliability and high contact density
with maximum weight and space savings
Amphenol® JT Connector
Amphenol® LJT Connector
Amphenol® LJT and JT Series subminiature cylindrical
connectors are qualified to MIL-DTL-38999*, Series I and
II respectively. These connectors were developed to meet
the needs of the aerospace industries, and provided the
impetus for development of the MIL-C-38999 specifica-
tions, which recently were superseded by MIL-DTL-38999.
Meeting or exceeding MIL-DTL-38999 requirements, Am-
phenol® JT/LJT connectors feature:
• Lightweight, Space Saving Design
• Contact Protection - 100% scoop-proof LJT design
prevents bent pins and short circuits during mating
• Quick Positive Coupling - 3 point bayonet lock system
• Mismating Eliminated - with 5 key/keyway design
• Error Proof Alternate Positioning - insured by different
key/keyway locations
• EMI Shielding - grounding fingers standard in LJT
Series; optional in JT Series
• Nine Shell Sizes and a Variety of Shell Styles
• Contact Options - size 8, 10, 12, 16, 20, 22M and 22D
Crimp, Solder, PCB, Wire wrap, Coax, Twinax, Triax,
Thermocouple, Fiber Optic and Filter
• Fixed Solder Contacts - per MIL-C-27599 (see page 52
and Amphenol Product Data Sheet 158)
• Hermetic - air leakage limited to 1 X 10-7 cm3 per
second optional
• “Breakaway” Lanyard Release Style - available in LJT
plugs. Provides quick disconnect of the connector plug
and receptacle with axial pull on the lanyard. See pages
38-41.
• Inventory Support Commonality - uses standard MIL-
DTL-38999 contacts, insert arrangements and applica-
tion tools.
•RoHS Compliant Product Available -
Consult Amphenol Aerospace Operations.
Where proof of high reliability and lot control is required, MS
approved equivalents to most proprietary JT and LJT connectors
are available.
* MIL-DTL-38999 Series I supersedes MIL-C-38999 Series I.
MIL-DTL-38999 Series II supersedes MIL-C-38999 Series II.
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For additional information on Amphenol JT/LJT connectors,
or for special application requirements, contact your local sales
office or:
Amphenol Corporation
Amphenol Aerospace
40 – 60 Delaware Avenue, Sidney, NY 13838-1395
Telephone: 607-563-5011 Fax: 607-563-5157
www.amphenol-aerospace.com
2
JT/LJT
the subminiature cylindrical
for every application
Components
Shell components are impact extruded or machined
bar stock aluminum. Standard plating on shell com-
ponents is cadmium over nickel. Many finishes are
optional (see “Specifications” page 3). Hermetic seal
receptacles are available in carbon steel or stain-
less steel shells. Dependable 5 key/keyway polar-
ization with bayonet lock coupling is incorporated
to aid and assure positive mating.
Insert material is a rigid dielectric with excellent elec-
trical characteristics, providing durable protection
for molded-in solder type contacts. Contrasting let-
ter or number designations are used on insert faces.
A fluorinated silicone interfacial seal wafer is fea-
tured on the mating face of “crimp type pin” inserts.
This assures complete electrical isolation of pins
when connector halves are mated. In addition, a
main joint gasket is installed in the receptacle for
moisture sealing between connector halves. Both
features are also available for hermetic receptacles.
Contacts
Maximum design flexibility is built into the JT/LJT
Series, with a minimum of 2 to a maximum of 128
circuits per connector in a wide variety of contact
arrangements. Contacts are available in sizes 8,
10, 12, 16, 20, 22, 22D and 22M with standard 50
micro inch minimum gold plating (100 micro inches
optional). All socket contacts are probe proof. Crimp
type rear removable contacts are featured in JT-R
and LJT-R connectors. Solder termination contacts
are also available, as well as PCB, wire wrap, ther-
mocouple, fiber optic, coaxial, triaxial and twinax
contact options.
Optional Features
High temperature capability of 392°F is available
only in JTS or LJTS crimp type connectors. High
temperature versions feature gold plated contacts,
high temperature shell plating, stainless steel cou-
pling nut spring, and epoxy inserts/fluorinated sili-
cone grommet combination. Standard temperature
capability for both solder and crimp is 302°F.
The JTN or LJTN type connectors are available for
N2O4resistance provided they are mated, and un-
grommeted rear faces are suitably protected.
For complete listing and definition of connector
types, shell styles and service classes, see How to
Order, page 53. For information on Fail-Safe Lan-
yard Release style plugs see pages 38-41.
Wall
Mounting
Receptacle
Box
Mounting
Receptacle
Straight
Plug
Jam Nut
Receptacle
90° Plug
Solder
Mounting
Receptacle
Wall
Mounting
Receptacle
Line
Receptacle
Jam
Nut
Receptacle
Straight
Plug
Solder
Mounting
Receptacle
Lanyard
Release
Plug
3
JT/LJT
specifications
Crimp Well Data Solder Well Data
Contact Well Nominal Well Nominal
Size Diameter Well Depth Diameter Well Depth
2 2 M .028 ±.001 .141 .029
2 2 D .0345 ±.0010 .141
2 2 .0365 ±.0010 .141 .036 .094
2 0 .047 ±.001 .209 .044 .125
1 6 .067 ±.001 .209 .078 .141
1 2 .100 ±.002 .209 .116 .141
10 (Power) .137 ±.002 .355 NA NA
CONTACT RATING
* When tested using silver plated wire. SERVICE RATING**
FINISH DATA
+.004
–.000
+.004
–.000
+.004
–.004
+.000
–.004
+.004
–.002
Suggested Operating Voltage
Service (Sea Level) Test Voltage Test Voltage Test Voltage Test Voltage
Rating AC (RMS) DC (Sea Level) 50,000 ft 70,000 ft 110,000 ft
M 400 500 1300 VRMS 550 VRMS 350 VRMS 200 VRMS
N 300 450 1000 VRMS 400 VRMS 260 VRMS 200 VRMS
I 600 850 1800 VRMS 600 VRMS 400 VRMS 200 VRMS
II 900 1250 2300 VRMS 800 VRMS 500 VRMS 200 VRMS
** Please note that the establishment of electrical safety factors is left entirely in the designer’s hands, since he is in the best position to know what peak voltage,
switching
surges, transients, etc. can be expected in a particular circuit.
Suffix
Finish Military Proprietary
Cadmium Plated Nickel Base MS (A) –
Anodic Coating (Alumilite) MS (C) (005)
Chromate Treated (Iridite 14-2) (011)
Olive Drab Cadmium Plate Nickel Base MS (B ) (014)
Electroless Nickel MS (F) (023)
Indicated Finish Standard for
JT Types Listed Below
JT/JTG/JTL/JTP
JTS/JTPS/JTLS
JTN/JTPN/JTLN
Indicated Finish Standard for
LJT Types Listed Below
LJT/LJTP
LJTPS/LJTS
LJTN/LJTPN
Aluminum Shell Components Non-Hermetic
Indicated Finish Standard for
JT Types Listed Below
JT( )H/JT( )Y
JTL( )H/JTL( )Y
JTS( )Y
JTLS( )Y
Indicated Finish Standard for
LJT Types Listed Below
LJT( )Y/LJT( )H
LJTS( )Y
Hermetic Connectors
22M 3 2 45 20 60
22D 5 3 73 85
22 5 3 73 20 85
20 7.5 5 55 20 60
16 13 10 49 20 85
12 23 17 42 20 85
10 (Power) 33 N A 33 N A N A
Maximum
Test Current Millivolt Drop
Maximum
Contact Solder & Millivolt Drop
Size Crimp Hermetic Crimp* Solder* Hermetic*
Suffix
Material/Finish Military Proprietary
Carbon Steel Shell
Tin Plated Shell and Contacts
Carbon Steel Shell MS (D)
Tin Plated Shell and Gold Plated Contacts
Stainless Steel Shell MS (E) (162)
Gold Plated Contacts
4
ROTATION
LETTERS
NORMAL
BADC
AB
10˚ JT REF
RELATIVE POSSIBLE POSITION
OF ROTATED MASTER KEYWAY
(front face of receptacle shown)
JT
8-2
8-3
8-6
8-35
8-44
8-97
8-98
10-4
10-5
10-13
10-35
10-98
10-99
12-3
12-4
12-8
12-22
12-35
12-98
14-4
14-5
14-15
14-18
14-19
14-35
14-37
14-68
14-97
Class Class
Solder Crimp H Y*
P
X N/A P P
X
XXPP
XXPP
X
XXPP
XPP
XPP
X
X
SXPP
XXPP
X P**
3
X2
XXPP
XX
S
XXPP
XXPP
XPP
XPP
XXPP
XXPP
XPP
P
XXPP
P
XXPP
XXPP
XXPP
XXPP
XPP
XXPP
XPP
XPP
XXPP
XXPP
2
2
XXPP
XX
XXPP
XXPP
XXPP
XXPP
XX
X
XPP
XPP
XXPP
XXPP
2
X3
2PP
XXPP
LJT
9-3
9-6
9-7
9-22
9-35
9-44
9-98
11-2★
11-4
11-5
11-6
11-13
11-35
11-98
11-99
13-3
13-4★
13-8
13-22
13-35
13-98
15-4
15-5★
15-15
15-18
15-19
15-35
15-37
15-68
15-97
Total Contact Size
Service Con- 8
Rating tacts 22D 22M 22 20 16 12 (Coax)
M2 2
M3 3
M6 6
M7 7
I2 2
M66
M4 4
M4 2 2
I3 3
I2 2
I4 4
I5 5
I6 6
M13 13
M1313
I6 6
I7 7
II 3 3
I4 4
I8 8
M22 22
M2222
I10 10
I4 4
II 5 5
I15 141
I18 18
I19 19
M3737
M37 37
18 8
I12 84
JT/LJT
insert availability and identification,
alternate positioning
(P) Pin inserts only (consult Amphenol, Sidney, NY for
socket availability)
(2 ) Not tooled for RP or 02RE
(3) Pin inserts only, not tooled for RP or 02RE (consult
Amphenol, Sidney, NY for availability)
* Same as H with interfacial seal
** Tooled with special terminal only (consult Amphenol,
Sidney, NY for availability of standard terminal)
★Ground plane proprietary option available. See page
55 for further information on ground plane connectors.
A plug with a given rotation letter will mate with a receptacle
with the same rotation letter. The AB angle for a given
connector is the same whether it contains pins or sockets.
Only the master key/keyway rotates in the shell, and the
insert always remains in the same position relative to the
minor keys.
AB angles shown are viewed from the front face of the
connector, a receptacle is shown below. The angles for the
plug are exactly the same except the direction of rotation is
opposite of that shown for the receptacle.
Shell
Size Normal A B C D
8100° 82° – – 118°
10 100° 86° 72° 128° 114°
12 100° 80° 68° 132° 120°
14 100° 79° 66° 134° 121°
16 100° 82° 70° 130° 118°
18 100° 82° 70° 130° 118°
20 100° 82° 70° 130° 118°
22 100° 85° 74° 126° 115°
24 100° 85° 74° 126° 115°
AB ANGLE OF ROTATION (Degrees)
JT MASTER KEY/KEYWAY ROTATION
Hermetics
5
ROTATION
LETTERS
NORMAL
BADC
AB
5˚ LJT REF
RELATIVE POSSIBLE POSITION
OF ROTATED MASTER KEYWAY
(front face of receptacle shown)
Service Con- 8 8
Rating tacts 22D 22M 22 20 16 12 (Coax)(Twinax)
M3938 1
I6 6
II 8 8
I13 13
Coax 4 2
M2422 2
I26 26
M5555
M42 42
M55 55
I23 212
II 11 11
M1814 4
I28 262
I30 291
I32 32
M6666
M53 53
M66 66
M67 67
I18 18
I9 9
M79 79
M65 65
I11 11
II 16 16
I24 24
I25 25
I27 27
M7979
I39 372
I41 41
JT
16-6
16-8
16-13
16-26
16-35
16-42
16-55
16-99
18-11
18-28
18-30
18-32
18-35
18-53
18-66
18-68
18-96
20-1
20-2
20-11
20-16
20-35
20-39
20-41
Class Class
Solder Crimp H Y*
X
XPP
XPP
XXPP
XXPP
2
2
2
XXPP
XXPP
XPP
XXPP
X
P
XXPP
XXP
XXPP
XX
XXPP
XXPP
2
XXPP
XP
XX
XP
XXPP
XXPP
XPP
XPP
XX
P
XXPP
XPP
X3
2
3
2
XP
X
X
2
3
2
XXPP
XXPP
X
X
XX
X
XXPP
XX
XXPP
XX
LJT
17-2
17-6
17-8★
17-13
17-22
17-25
17-26
17-35
17-42
17-55
17-99
19-11★
19-18
19-28
19-30
19-32
19-35
19-53
19-66
19-67
19-68
21-1
21-2
21-11★
21-16★
21-24
21-25
21-27
21-35
21-39
21-41
JT/LJT
insert availability and identification,
alternate positioning
(P) Pin inserts only (consult Amphenol, Sidney, NY for
socket availability)
(2 ) Not tooled for RP or 02RE
(3) Pin inserts only, not tooled for RP or 02RE (consult
Amphenol, Sidney, NY for availability)
* Same as H with interfacial seal
★Ground plane proprietary option available. See page
55 for further information on ground plane connectors.
A plug with a given rotation letter will mate with a receptacle
with the same rotation letter. The AB angle for a given
connector is the same whether it contains pins or sockets.
Only the master key/keyway rotates in the shell, and the
insert always remains in the same position relative to the
minor keys.
AB angles shown are viewed from the front face of the
connector, a receptacle is shown below. The angles for the
plug are exactly the same except the direction of rotation is
opposite of that shown for the receptacle.
Shell
Size Normal A B C D
995° 77° – – 113°
11 95° 81° 67° 123° 109°
13 95° 75° 63° 127° 115°
15 95° 74° 61° 129° 116°
17 95° 77° 65° 125° 113°
19 95° 77° 65° 125° 113°
21 95° 77° 65° 125° 113°
23 95° 80° 69° 121° 110°
25 95° 80° 69° 121° 110°
AB ANGLE OF ROTATION (Degrees)
LJT MASTER KEY/KEYWAY ROTATION
Hermetics
2
Coax
Contact Size
Total
6
JT
22-1 X
22-2 XXPP
22-14 2
22-21 XXPP
22-32 X X P
22-35 X
22-53 P
22-55 XXPP
24-1 X
24-2 X
24-4 X P P
24-19 2
24-24 X P P
24-29 X
24-35 X
24-37 2
24-43 3
24-61 XXPP
Class ClassService Con- 8 8†† 10 12
Solder Crimp H Y* Rating tacts 22D 22M 22 20 16 12 (Coax) (Twinax) (Power) Coax
N4
II 19 17
M 100 100
M85 85
M6 6
I14 14
II 21 21
I32 32
I34 34
M 100 100
I53 53
I55 55
II 16 16
II 11 11
M 128 128
M 100 100
I56 488
M9997 2
N11 2 9
I19 19
N30 1013 3 4
I24 1212
I29 29
M 128 128
I37 37
I43 2320
I46 404 2†
I61 61
JT/LJT
insert availability and identification
(P) Pin inserts only (consult Amphenol, Sidney, NY for socket availability)
(2 ) Not tooled for RP or 02RE
(3) Pin inserts only, not tooled for RP or 02RE (consult Amphenol, Sidney,
NY for availability)
* Same as H with interfacial seal
** Two size 16 contacts dedicated to fiber optics. Consult Amphenol,
Sidney, NY or catalog section 12-352 for fiber optic contact information.
† For RG180/U and RG195/U cables only (consult Amphenol, Sidney, NY
for other cable applications)
† † Size 8 Coax and Twinax are interchangeable
(4) MS connector 21-75 is supplied with four size 8 twinax contacts.
Proprietary connector 21-75 is supplied with four size 8 coax contacts.
(5) MS connector 21-79 has provision for two size 8 coax contacts. Coax
contacts are not supplied unless specified by customer.
★Ground plane proprietary option available. See page 55 for further
information on ground plane connectors.
(See Note 4)
(See Note 5)
Hermetics Contact Size
Total
LJT
21-75★2
21-79 2
23-1 X
23-2 XXPP
23-6★P
23-14 2
23-21★XXPP
23-32 X P
23-34 X
23-35 X
23-53 X X P
23-55 3
23-97 X
23-99 X
25-1 X
25-2 X
25-4 X
25-7 2
25-11 2
25-19★2
25-20 2
25-24★X
25-29★XX
25-35 X
25-37★2
25-43 X 2 P P
25-46 2
25-61 XXPP
7
JT/LJT
insert arrangements
Insert Arrangement (JT) 8-2 8-3 8-6 8-35 8-44 8-97 8-98
Insert Arrangement (LJT) 9-3 9-6 9-7 9-22 9-35 9-44 9-98
Service Rating MMMM I MMM I
Number of Contacts 2367264223
Contact Size 20 20 22M 22M 20 22D 22 22M 20 20
black arrangements – JT or LJT
green arrangements – JT only
blue arrangements – LJT only
Insert Arrangement (JT) 10-4 10-5 10-13 10-35 10-98 10-99
Insert Arrangement (LJT) 11-2 11-4 11-5 11-6 11-13 11-35 11-98 11-99
Service Rating I I I I M M I I
Number of Contacts 2 4 5 6 13 13 6 7
Contact Size 16 20 20 20 22M 22D 20 20
Insert Arrangement (JT) 12-3 12-4 12-8 12-22 12-35 12-98 14-4 14-5
Insert Arrangement (LJT) 13-3 13-4 13-8 13-22 13-35 13-98 15-4 15-5
Service Rating II I I M M I I II
Number of Contacts 3 4 8 22 22 10 4 5
Contact Size 16 16 20 22M 22D 20 12 16
Insert Arrangement (JT) 14-15 14-18 14-19 14-35 14-37 14-68 14-97
Insert Arrangement (LJT) 15-15 15-18 15-19 15-35 15-37 15-68 15-97
Service Rating I I I M M I I
Number of Contacts 14 1 18 19 37 37 8 8 4
Contact Size 20 16 20 20 22D 22M 16 20 16
A
B
A
B
C
1
2
3
4
56
1
2
3
4
5
67
A
B
51
6
4
3
2
1
2
3
4
A
B
C
D
CA
B
AB
A
BC
DA
B
C
D
E
F12
3
4
5
6
7
8
9
10
11
12
13
12
3
4
5
6
7
8
9
10
11
1213
A
B
C
D
EF
A
B
C
D
E
F
G
A
B
C
A
B
C
D
A
B
C
D
E
F
G
H
22
1
20
1
21
22
AB
C
D
E
F
G
H
JK
A
B
CD
E
A
BC
D
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
A
B
C
D
E
F
G
H
J
K
L
MN
P
R
S
TU
AB
C
D
E
FG
H
J
K
L
M
NP
R
S
T
UV
1
21
31
AB
C
D
E
F
G
H
J
K
L
M
1
11
21
31
A
B
C
D
E
F
GH
CONTACT LEGEND 8 10 12 16 20 22 22M 22D
front face of pin inserts illustrated
A
B
C
D
E
8
JT/LJT
insert arrangements
CONTACT LEGEND 8 10 12 16 20 22 22M 22D
Insert Arrangement (JT) 16-6 16-8 16-13 16-26
Insert Arrangement (LJT) 17-2 17-6 17-8 17-13 17-22 17-25 17-26
Service Rating M I II I Coax M I
Number of Contacts 38 1 6 8 13 2 2 22 2 26
Contact Size 22D 8 Twinax 12 16 16 12 Coax 8 Coax 22D 8 Coax 20
Insert Arrangement (JT) 16-35 16-42 16-55 16-99 18-11
Insert Arrangement (LJT) 17-35 17-42 17-55 17-99 19-11 19-18
Service Rating M M M I II M
Number of Contacts 55 42 55 21 2 11 14 4
Contact Size 22D 22 22M 20 16 16 22D 8 Twinax
Insert Arrangement (JT) 18-28 18-30 18-32 18-35 18-53 18-66
Insert Arrangement (LJT) 19-28 19-30 19-32 19-35 19-53 19-66
Service Rating I I I M M M
Number of Contacts 26 2 29 1 32 66 53 66
Contact Size 20 16 20 16 20 22D 22 22M
Insert Arrangement (JT) 18-68 18-96 20-1 20-2
Insert Arrangement (LJT) 19-67 19-68 21-1 21-2
Service Rating M I I M M
Number of Contacts 67 18 9 79 65
Contact Size 22M 16 12 22M 22
1
6
11
17
30
A
B
C
D
E
F
A
B
C
DE
F
G
H
AB
C
D
E
F
G
HJK
L
NM
A
D
C
B
12
3
4
5
6
7
8
9
10
11 12 13 14
15 16
17
18
19
20
21
22
23
24
AB
C
D
E
F
G
H
J
K
L
M
N
P
RSTU
V
W
X
Y
Z
ab
c
1
3
4
9
10
16
17
24
25
31
32
39
40
47
46
52
53
55
1
21
42
41
31
11
1
3
4
9
10
16
17
24 31
25
32
39
40
46
47
52
53
55
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
STU
V
W
X
Y
Z
A
B
C
D
E
F
G
H
J
K
L
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
AB
N
CD
E
F
G
H
J
K
L
M
P
RSTUVW
X
Y
Z
a
b
cd
e
ABCD
E
F
G
H
J
K
L
M
N
PRSTUV
W
X
Y
Z
a
bcde
gf
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
a
b
c
d
e
f
g
h
j
1
2
3
4
9
10
16
17
24
25
33
34
42
43
50
51
57
58
63
64
66
1
41
51
52
53
31
11
21
1
2
3
4
9
10
24
16
17 25
33
34
42
43
50
51
57
58
63
64
66
1
3
4
9
10
16
17
24
25
34
35
43
44
51
52
58
59
64
65
67
ABL
CK
DJ
EH
FG R
U
M
TN
SP
A
BH
C
D
F
E
GJ
1
21
31
41
51
61
71
79
11
1
31
21
11
41
51
61
65
black arrangements – JT or LJT
green arrangements – JT only
blue arrangements – LJT only
front face of pin inserts illustrated
9
JT/LJT
insert arrangements
Insert Arrangement (JT) 20-11 20-16
Insert Arrangement (LJT) 21-11 21-16 21-24 21-25 21-27
Service Rating I II I I I
Number of Contacts 11 16 24 25 27
Contact Size 12 16 20 20 20
Insert Arrangement (JT) 20-35 20-39 20-41
Insert Arrangement (LJT) 21-35 21-39 21-41 21-75 21-79
Service Rating M I I N II
Number of Contacts 79 37 2 41 4 17
Contact Size 22D 20 16 20 (See Note) 22D
Insert Arrangement (JT) 22-1 22-2 22-14
Insert Arrangement (LJT) 23-1 23-2 23-6 23-14
Service Rating M M M I
Number of Contacts 100 85 6 14
Contact Size 22M 22 8 Twinax 12
Note: MS connector 21-75 is supplied with four size 8 twinax contacts.
Proprietary connector 21-75 is supplied with four size 8 coax contacts.
MS connector 21-79 has provision for two size 8 coax contacts.
Coax contacts are not supplied unless specified by customer.
(See Note)
A
B
C
D
E
F
G
H
J
K
L
A
B
C
D
E
F
G
H
J
K
L
M
N
PR
S
A
B
C
D
E
F
G
H
J
K
LM
N
P
R
S
T
U
V
WX
Y
Z
a
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
a
b
A
B
C
D
E
F
G
HJ
K
L
M
N
P
RS
T
U
V
W
X
Y
Z
a
b
c
d
1
11
21
31
41
51
61 71
79
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
UVW
XYZ
a
b
c
d
e
f
g
h
i
j
k
m
n
p
q
r
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
VW
XY
Z
a
b
c
d
e
f
g
h
i
j
k
m
n
p
q
r
s
t
A
BC
D
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
ST
UV
1
2
34
56
7
8
15
16
24
25
34
35
45
46
55
56
66
67
76
77
85
86
93
94
9596
97 98
99
100
1
4
5
11
12
19
20
28
29
38
39
47
48
57
58
66
67
74
75
81
82
85
A
B
C
D
EF
A
BK
CJ LP
MN
DH EG
F
CONTACT LEGEND 8 10 12 16 20 22 22M 22D
black arrangements – JT or LJT
green arrangements – JT only
blue arrangements – LJT only
front face of pin inserts illustrated
10
JT/LJT
insert arrangements
Insert Arrangement (JT) 22-21 22-32 22-35
Insert Arrangement (LJT) 23-21 23-32 23-34 23-35
Service Rating II I I M
Number of Contacts 21 32 34 100
Contact Size 16 20 20 22D
Insert Arrangement (JT) 22-53 22-55
Insert Arrangement (LJT) 23-53 23-55 23-97 23-99
Service Rating I I II II
Number of Contacts 53 55 16 11
Contact Size 20 20 16 16
Insert Arrangement (JT) 24-1 24-2 24-4
Insert Arrangement (LJT) 25-1 25-2 25-4
Service Rating M M I
Number of Contacts 128 100 48 8
Contact Size 22M 22 20 16
A
B
C
D
E
F
G
H
J
K
L
MP
R
S
N
T
U
V
W
X
AB
C
D
E
F
G
H
J
K
L
MNPR
S
T
U
V
W
X
Y
Z
a
b
c
d
e
f
g
h
j
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
STU
V
W
X
Y
Z
a
b
c
de
f
g
h
j
k
l
1
2
34
5
6
7
8
15
16
24
25
34
35
45
46
55
56
66
67
76
77
85
86
93
94
9596
97
98
99
100
AB
C
D
E
F
G
H
J
K
L
M
N
P
RST
U
VW
X
Y
Z
a
b
c
d
e
f
g
h
km
np
q
r
s
t
AB
u
v
w
x
y
zAB
CC
DD
EE
FF
GG
HH
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
TUVW
X
Y
Z
a
b
c
d
e
f
g
h
i
j
k
mn
p
q
r
s
t
v
w
x
y
z
AA BB
CC
u
DD
EE
FF
GG
HH
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
A
B
C
D
E
F
G
H
J
K
L
1
7
8
14
24
25
48
58
59
70
71
81
94
104
105
114
115
121
125
35
15
1
2
3
19 40 51
73
92
99
100
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Za
bc
d
e
f
g
h
k
m
n
p
q
r
t
u
vw
x
y
z
sJJ
KK
LL
AA
BBCC
DD
EE
FF
GG
HH
CONTACT LEGEND 8 10 12 16 20 22 22M 22D
black arrangements – JT or LJT
green arrangements – JT only
blue arrangements – LJT only
front face of pin inserts illustrated
11
JT/LJT
insert arrangements
Insert Arrangement (JT) 24-19
Insert Arrangement (LJT) 25-7 25-11 25-19 25-20
Service Rating M N I N
Number of Contacts 97 2 2 9 19 10 13 3 4
Contact Size 22D 8 Twinax 20 10 12 20 16 8 Twinax 12 Coax
(Locations U and Y - Dedicated
to Fiber Optics)
Insert Arrangement (JT) 24-24 24-29 24-35 24-37
Insert Arrangement (LJT) 25-24 25-29 25-35 25-37
Service Rating I I M I
Number of Contacts 12 12 29 128 37
Contact Size 16 12 16 22D 16
Insert Arrangement (JT) 24-43 24-61
Insert Arrangement (LJT) 25-43 25-46 25-61
Service Rating I I I
Number of Contacts 23 20 40 4 2 61
Contact Size 20 16 20 16 8 Coax† 20
† Coax contacts for RG180 or RG195 cable.
1
6
7
15
16
18
19
21
22
24
26
28
29
32
33
41
42
46
53
59
60
64
67
68
72
74
76
78
79
81
82
84
85
93
94
99
25 75
A
B
C
D
E
F
G
HJ
KL
AB
C
D
E
FGH
J
K
L
M
NP
R
ST
UV
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
1
2
3
4
5
6
7
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
YZ
a
A
B
C
D
E
F
G
H
J
K
L
M
N
P
RST
U
V
W
X
Y
Z
a
bc
d
e
f
1
4
7
8
14
15
24
25
35
36
47
48
58
59
70
71
81
82
93
94
104
105
114
115
121
125
128
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
a
b
c
d
e
f
g
h
k
m
n
p
q
r
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
XYZ
a
b
c
d
e
f
g
h
k
m
np
q
r
s
tu
v
w
x
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
ab
c
d
e
f
g
h
i
j
k
m
n
p
q
r
s
t
uv
w
x
y
z
BB
CC
DD
EE
FF
GG HH
JJ
KK
LL
MM
NN
AA
PP
CONTACT LEGEND 8 10 12 16 20 22 22M 22D
black arrangements – JT or LJT
green arrangements – JT only
blue arrangements – LJT only
front face of pin inserts illustrated
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
Y
Z
a
b
c
d
e
f
g
h
k
m
n
p
q
r
s
t
u
v
w
x
y
z
AA
12
R
(TP)S
T
(4 HOLES)
R (TP)
S
.322
.380 L
3
±.031
V
.200
NN
.322
.380 L
.200
KK
+.000
–.005
+.000
–.005
+.006
–.000
+.006
–.000 2
±.031
2
.322
.380
+.000
–.005
+.006
–.000
+.006
–.000
KK
F
.200
±.031
L
.380
+.000
–.005
.322
L
1
1
1
KK
F
.200
±.031
N
N
FV Thread
Dia. F1N UNEF KK1KK2
Shell +.010 Dia. L L1L2L3+.001 R S T Class 2A K K Dia. Dia.
Size –.025 ±.010 Max. Max. Max. Max. –.005 (TP) ±.016 ±.005 (Plated) Max. Max. Max.
8 .125 .444 1.094 .609 .547 .500 .473 .594 .812 .120 .4375-28 .812 .625 .578
10 .188 .558 1.094 .609 .547 .500 .590 .719 .938 .120 .5625-24 .875 .750 .703
12 .312 .683 1.094 .609 .547 .500 .750 .812 1.031 .120 .6875-24 1.000 .875 .828
14 .375 .808 1.344 .609 .547 .500 .875 .906 1.125 .120 .8125-20 1.125 1.000 .953
16 .500 .909 1.344 .609 .547 .500 1.000 .969 1.219 .120 .9375-20 1.188 1.125 1.078
18 .625 1.034 1.344 .609 .547 .500 1.125 1.062 1.312 .120 1.0625-18 1.438 1.250 1.203
20 .625 1.159 1.344 .609 .547 .500 1.250 1.156 1.438 .120 1.1875-18 1.438 1.375 1.328
22 .750 1.284 1.469 .609 .547 .500 1.375 1.250 1.562 .120 1.3125-18 1.625 1.500 1.453
24 .800 1.409 1.469 .688 .547 .500 1.500 1.375 1.688 .147 1.4375-18 1.719 1.625 1.578
JT00R (MS27472) — crimp
wall mounting receptacle
* JT00RT-XX-XXX(MS27472T)
** JTS00RT-XX-XXX(MS27479T)
*** JTN00RT-XX-XXX
* JT00RE-XX-XXX (MS27472E)
** JTS00RE-XX-XXX(MS27479E)
*** JTN00RE-XX-XXX
* JT00RP-XX-XXX(MS27472P)
** JTS00RP-XX-XXX
*** JTN00RP-XX-XXX
* JT00RE-XX-XXX (SR)
** JTS00RE-XX-XXX (SR)
*** JTN00RE-XX-XXX (SR)
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
.005 DIA M
All dimensions for reference only.
13
S
R (TP)
R
(TP)
S
T
(4 HOLES)
SS
AD N
.447 .438
MAX.
P
+.000
–.005
+.000
–.005
.322 .169 MAX.
V
AD N
.322
+.000
–.005
.169 MAX.
KK
2
.500
MAX.
.447
+.000
–.005
P
+.000
–.005
.322 .169 MAX. .322
+.000
–.005
.169 MAX.
P
L
AD NKK
F
L
.447
AD N
P
KK
F
1
+.000
–.005
1
1
.447
+.000
–.005
F N P V Thread SS
Dia. F1Dia. Max. T UNEF AD KK1KK2Dia.
Shell +.010 Dia. L L1+.001 Panel R S Dia. Class 2A Dia. KK Dia. Dia. +.000
Size –.025 ±.010 Max. Max. –.005 Thickness (TP) ±.016 ±.005 (Plated) ±.005 Max. Max. Max. –.016
8 .125 .444 1.140 .468 .473 .142 .594 .812 .120 .4375-28 .516 .781 .625 .578 .563
10 .188 .558 1.140 .468 .590 .142 .719 .938 .120 .5625-24 .633 .844 .750 .703 .680
12 .312 .683 1.140 .468 .750 .142 .812 1.031 .120 .6875-24 .802 .969 .875 .828 .859
14 .375 .808 1.375 .468 .875 .142 .906 1.125 .120 .8125-20 .927 1.094 1.000 .953 .984
16 .500 .909 1.375 .468 1.000 .142 .969 1.219 .120 .9375-20 1.052 1.154 1.125 1.078 1.108
18 .625 1.034 1.375 .468 1.125 .142 1.062 1.312 .120 1.0625-18 1.177 1.406 1.250 1.203 1.233
20 .625 1.159 1.375 .468 1.250 .142 1.156 1.438 .120 1.1875-18 1.302 1.406 1.375 1.328 1.358
22 .750 1.284 1.516 .468 1.375 .142 1.250 1.562 .120 1.3125-18 1.427 1.594 1.500 1.453 1.483
24 .800 1.409 1.500 .540 1.500 .142 1.375 1.688 .147 1.4375-18 1.552 1.688 1.625 1.578 1.610
JTPQ00R (MS27497) — crimp
wall mounting receptacle (back panel mounting)
* JTPQ00RT-XX-XXX(MS27497T)
** JTPSQ00RT-XX-XXX * JTPQ00RE-XX-XXX (MS27497E)
* JTPQ00RP-XX-XXX(MS27497P) *JTPQ00RE-XX-XXX (SR)
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
.005 DIA M
All dimensions for reference only.
14
C
S
S
.891 MAX.
.380
+.006
–.000
.322
+.000
–.005
N
V
.580
±.025
.938 MAX.
.380
+.006
–.000
.322
+.000
–.005
.580
±.025
KK
N
.380
+.006
–.000
.322
+.000
–.005
N
.580
±.025
FKK
1
L
.322
+.000
–.005
.380
+.006
–.000
.580
±.025
L
1
F
1
KK
2
N
JT01R — crimp
line receptacle
* JT01RT-XX-XXX
** JTS01RT-XX-XXX
*** JTN01RT-XX-XXX
* JT01RE-XX-XXX
** JTS01RE-XX-XXX
*** JTN01RE-XX-XXX
* JT01RP-XX-XXX
** JTS01RP-XX-XXX
*** JTN01RP-XX-XXX
* JT01RE-XX-XXX (SR)
** JTS01RE-XX-XXX (SR)
*** JTN01RE-XX-XXX (SR)
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
All dimensions for reference only.
F1N V Thread
F Dia. Dia. S UNEF KK KK1
Shell C Dia. +.010 L L1+.001 +.017 Class 2A Dia. Dia. KK2
Size Max. ±.010 –.025 Max. Max. –.005 –.016 (Plated) Max. Max. Max.
8 .965 .444 .125 1.031 1.562 .473 .812 .4375-28 .578 .625 .812
10 1.089 .558 .188 1.031 1.562 .590 .938 .5625-24 .703 .750 .875
12 1.183 .683 .312 1.031 1.562 .750 1.031 .6875-24 .828 .875 1.000
14 1.277 .808 .375 1.031 1.812 .875 1.125 .8125-20 .953 1.000 1.125
16 1.371 .909 .500 1.031 1.812 1.000 1.219 .9375-20 1.078 1.125 1.188
18 1.465 1.034 .625 1.031 1.812 1.125 1.312 1.0625-18 1.203 1.250 1.438
20 1.589 1.159 .625 1.031 1.812 1.250 1.438 1.1875-18 1.328 1.375 1.438
22 1.715 1.284 .750 1.031 1.938 1.375 1.562 1.3125-18 1.453 1.500 1.625
24 1.838 1.409 .800 1.109 1.938 1.500 1.688 1.4375-18 1.578 1.625 1.719
15
JT02R (MS27499) — crimp
box mounting receptacle
JT02R (MS27513) — crimp
box mounting receptacle
* JT02R-XX-XXX (MS27499)
** JTS02R-XX-XXX
*** JTN02R-XX-XXX
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
All dimensions for reference only.
NOTE: For applications requiring an environmental seal, please refer to JT00R, page 12.
NKK
Shell L +.001 R S T Dia.
Size Max. –.005 (TP) ±.016 ±.005 Max.
8 .286 .473 .594 .812 .120 .438
10 .286 .590 .719 .938 .120 .563
12 .286 .750 .812 1.031 .120 .688
14 .286 .875 .906 1.125 .120 .813
16 .286 1.000 .969 1.219 .120 .938
18 .286 1.125 1.062 1.312 .120 1.047
20 .286 1.250 1.156 1.438 .120 1.172
22 .286 1.375 1.250 1.562 .120 1.297
24 .286 1.500 1.375 1.688 .147 1.422
.005 DIA M
S
R (TP)
R
(TP)
S
T
(4 HOLES)
+.006
–.000
.380
+.000
–.005
.322
±.031
.200
KK
L
N
* JT02RE-XX-XXX (MS27513E)
** JTS02RE-XX-XXX
*** JTN02RE-XX-XXX
+.006
–.000
.380
+.000
–.005
.322
±.031
.200
.516 MAX.
KK
L
N
16
JTP02R (MS27508) – crimp
box mounting receptacle (back panel mounting)
* JTP02RE-XX-XXX (MS27508E)
** JTPS02RE-XX-XXX
*** JTPN02RE-XX-XXX
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
.005 DIA M
P
N Max. T AD KK
Shell L +.001 Panel R S Dia. Dia. Dia.
Size Max. –.005 Thickness (TP) ±.016 ±.005 ±.005 Max.
8 .225 .473 .147 .594 .812 .120 .516 .531
10 .225 .590 .152 .719 .938 .120 .633 .656
12 .225 .750 .152 .812 1.031 .120 .802 .828
14 .225 .875 .152 .906 1.125 .120 .927 .953
16 .225 1.000 .152 .969 1.219 .120 1.052 1.078
18 .225 1.125 .152 1.062 1.312 .120 1.177 1.203
20 .225 1.250 .179 1.156 1.438 .120 1.302 1.328
22 .225 1.375 .179 1.250 1.562 .120 1.427 1.453
24 .225 1.500 .169 1.375 1.688 .147 1.552 1.578
All dimensions for reference only.
S
R (TP)
R
(TP)
S
T
(4 HOLES)
+.006
–.000
+.000
–.005
.505
.447
P
KK
.138
L
.322
+.000
–.005
±.031
AD N
17
Q
KK1
1
F
.325 ±.025.257 +.003
–.002
L
.325 ±.025
.257 +.003
–.002
L
KK
2
2
.325 ±.025
FKK
L1
.257 +.003
–.002
L
V
.325 ±.025.257 +.003
–.002
3
JT06R (MS27473) – crimp
straight plug
* JT06RE-XX-XXX (SR)
** JTS06RE-XX-XXX (SR)
*** JTN06RE-XX-XXX (SR)
* JT06RE-XX-XXX (MS27473E)
** JTS06RE-XX-XXX
*** JTN06RE-XX-XXX
* JT06RP-XX-XXX (MS27473P)
** JTS06RP-XX-XXX
*** JTN06RP-XX-XXX
* JT06RT -XX-XXX (MS27473T)
** JTS06RT-XX-XXX
*** JTN06RT-XX-XXX
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
F1V Thread Modified
Dia. Q KK KK2
Shell F +.010 L L1L2L3Dia. Class 2A Modified Dia. KK1Dia.
Size Dia. –.025 Max. Max. Max. Max. Max. UNEF Major Dia. Max. Max. Max.
8 .444 .125 1.562 1.000 .938 .891 .734 .4375-28 .421 – .417 .625 .812 .578
10 .558 .188 1.562 1.000 .938 .891 .844 .5625-24 .542 – .538 .750 .875 .703
12 .683 .312 1.562 1.000 .938 .891 1.016 .6875-24 .667 – .663 .875 1.000 .828
14 .808 .375 1.812 1.000 .938 .891 1.141 .8125-20 .791 – .787 1.000 1.125 .953
16 .909 .500 1.812 1.000 .938 .891 1.265 .9375-20 .916 – .912 1.125 1.188 1.078
18 1.034 .625 1.812 1.000 .938 .891 1.391 1.0625-18 1.034 – 1.030 1.250 1.438 1.203
20 1.159 .625 1.812 1.000 .938 .891 1.500 1.1875-18 1.158 – 1.154 1.375 1.438 1.328
22 1.284 .750 1.938 1.000 .938 .891 1.625 1.3125-18 1.283 – 1.279 1.500 1.625 1.453
24 1.409 .800 1.938 1.062 .938 .891 1.750 1.4375-18 1.408 – 1.404 1.625 1.719 1.578
All dimensions for reference only.
18
GROUNDING
FINGERS
L1
FKK
GROUNDING
FINGERS
.257
+.003
–.002 ±.025
.325
KK1
.938 MAX.
Q
V
GROUNDING
FINGERS
L
.257
+.003
–.002 ±.025
.325
.257
+.003
–.002 ±.025
.325
JTG06R (MS27484) – crimp
straight plug (with grounding fingers)
* JTG06RE-XX-XXX (MS27484E)
** JTNG06RE-XX-XXX
* JTG06RP-XX-XXX (MS27484P)
** JTNG06RP-XX-XXX
* JTG06RT -XX-XXX (MS27484T)
** JTNG06RT-XX-XXX
* To complete order number see page 53.
** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
Q V Thread Modified KK KK1
Shell F L L1Dia. Class 2A Mo dified Dia. Dia.
Size Dia. Max. Max. Max. UNEF Major Dia. Max. Max.
8 .444 .891 1.000 .734 .4375-28 .421 – .417 .625 .578
10 .558 .891 1.000 .844 .5625-24 .542 – .538 .750 .703
12 .683 .891 1.000 1.016 .6875-24 .667 – .663 .875 .828
14 .808 .891 1.000 1.141 .8125-20 .791 – .787 1.000 .953
16 .909 .891 1.000 1.265 .9375-20 .916 – .912 1.125 1.078
18 1.034 .891 1.000 1.391 1.0625-18 1.034 – 1.030 1.250 1.203
20 1.159 .891 1.000 1.500 1.1875-18 1.158 – 1.154 1.375 1.328
22 1.284 .891 1.000 1.625 1.3125-18 1.283 – 1.279 1.500 1.453
24 1.409 .891 1.062 1.750 1.4375-18 1.408 – 1.404 1.625 1.578
All dimensions for reference only.
19
C
S (2 PLACES)
H
A
T
M.094
.062 MIN.**
.109 MAX.
O RING O RING
Z
F
KK
RR
N
+.011
–.010
L3
M .094
.062 MIN.**
.109 MAX.
O RING
+.011
–.010
M.094
.062 MIN.**
.109 MAX.
O RING
+.011
–.010
.094
.062 MIN**
.109 MAX.
M
N
Z
L
KK
RR
+.011
–.010
2
N
Z
L
RR
FKK1
2
1N
Z
V
L1
RR
JT07R (MS27474) — crimp
jam nut receptacle
* JT07RE-XX-XXX (SR)
*** JTS07RE-XX-XXX (SR)
**** JTN07RE-XX-XXX (SR)
★.059 Dia. Min. 3 lockwire holes.
Formed lockwire hole design (6 holes) is optional.
•“D” shaped mounting hole dimensions.
* To complete order number see page 53.
** Panel Thickness
*** High temperature version; to complete order number see page 53.
**** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
All dimensions for reference only.
A• F Dia H Hex N T • V Thread KK1KK2RR Thread
Shell +.000 C +.010 F1+.017 L L1L2L3M +.001 S +.010 UNEF Z KK Dia. Dia. (Plated)
Size –.010 Max. –.025 Dia. –.016 Max. Max. Max. Max. ±.005 –.005 ±.016 –.000 Class 2A ±.031 Max. Max. Max. Class 2A
8 .830 1.390 .125 .444 1.062 .484 .453 .563 1.047 .438 .473 1.250 .884 .4375-28 .144 .812 .625 .578 .8750-20UNEF
10 .955 1.515 .188 .558 1.188 .484 .453 .563 1.047 .438 .590 1.375 1.007 .5625-24 .144 .875 .750 .703 1.0000-20UNEF
12 1.084 1.640 .312 .683 1.312 .484 .453 .563 1.047 .438 .750 1.500 1.134 .6875-24 .144 1.000 .875 .828 1.1250-18UNEF
14 1.208 1.765 .375 .808 1.438 .484 .453 .563 1.297 .438 .875 1.625 1.259 .8125-20 .144 1.125 1.000 .953 1.2500-18UNEF
16 1.333 1.953 .500 .909 1.562 .484 .453 .563 1.297 .438 1.000 1.781 1.384 .9375-20 .144 1.188 1.125 1.078 1.3750-18UNEF
18 1.459 2.031 .625 1.034 1.688 .484 .453 .563 1.297 .438 1.125 1.890 1.507 1.0625-18 .144 1.438 1.250 1.203 1.5000-18UNEF
20 1.576 2.156 .625 1.159 1.812 .453 .422 .531 1.266 .464 1.250 2.016 1.634 1.1875-18 .188 1.438 1.375 1.328 1.6250-18UNEF
22 1.701 2.280 .750 1.284 2.000 .453 .422 .531 1.391 .464 1.375 2.140 1.759 1.3125-18 .188 1.625 1.500 1.453 1.7500-18UNS
24 1.826 2.405 .800 1.409 2.125 .375 .422 .609 1.391 .464 1.500 2.265 1.884 1.4375-18 .188 1.719 1.625 1.578 1.8750-16UN
* JT07RE-XX-XXX (MS27474E)
*** JTS07RE-XX-XXX
**** JTN07RE-XX-XXX
* JT07RP-XX-XXX (MS27474P)
*** JTS07RP-XX-XXX
**** JTN07RP-XX-XXX
* JT07RT -XX-XXX (MS27474T)
*** JTS07RT-XX-XXX
**** JTN07RT-XX-XXX
20
★.059 Dia. Min. 3 lockwire holes.
Formed lockwire hole design (6 holes) is optional.
•“D” shaped mounting hole dimensions.
* To complete order number see page 53.
*** High temperature version; to complete order number see page 53.
**** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
S
H
S
A
T
C
MPK
O RING
KK
RR
ZL
2
N
RR
ZL
N
KK
1
F
MPK
O RING
KK
RR
ZL
N
1
MPK
O RING
FH N P
A• Dia. Hex K Dia. Panel Thickness T• KK RR
Shell +.000 C +.010 +.017 +.011 L L1L2M +.001 S +.010 Z Dia. KK1Thread
Size –.010 Max. –.025 –.016 –.010 Max. Max. Max. ±.005 –.005 Min. Max. ±.016 –.000 ±.026 Max. Max. Class 2A
8 .542 1.077 .125 .750 .125 1.062 .641 .375 .630 .473 .062 .125 .938 .572 .047 .688 .812 .5625-24UNEF
10 .669 1.203 .188 .875 .125 1.062 .641 .375 .630 .590 .062 .125 1.062 .697 .047 .812 .875 .6875-24UNEF
12 .830 1.390 .312 1.062 .125 1.062 .641 .375 .630 .750 .062 .125 1.250 .844 .047 .938 1.000 .8750-20UNEF
14 .955 1.515 .375 1.188 .125 1.062 .641 .375 .630 .875 .062 .125 1.375 1.007 .047 1.062 1.125 1.0000-20UNEF
16 1.084 1.640 .500 1.312 .125 1.062 .641 .375 .630 1.000 .062 .125 1.500 1.134 .047 1.188 1.188 1.1250-18UNEF
18 1.208 1.765 .625 1.438 .125 1.062 .641 .375 .630 1.125 .062 .125 1.625 1.259 .047 1.312 1.438 1.2500-18UNEF
20 1.333 1.953 .625 1.562 .156 1.062 .703 .328 .755 1.250 .062 .250 1.812 1.384 .172 1.469 1.438 1.3750-18UNEF
22 1.459 2.075 .750 1.688 .156 1.062 .703 .328 .755 1.375 .062 .250 1.938 1.507 .172 1.594 1.625 1.5000-18UNEF
24 1.575 2.203 .800 1.812 .156 1.062 .703 .328 .755 1.500 .062 .250 2.062 1.634 .172 1.719 1.719 1.6250-18UNEF
JTL07R — crimp
jam nut receptacle
(miniature jam nut mounting dimensions)
* JTL07RP-XX-XXX
*** JTLS07RP-XX-XXX
**** JTLN07RP-XX-XXX
* JTL07RE-XX-XXX (SR)
*** JTLS07RE-XX-XXX (SR)
**** JTLN07RE-XX-XXX (SR)
* JTL07RE-XX-XXX
*** JTLS07RE-XX-XXX
**** JTLN07RE-XX-XXX
All dimensions for reference only.
21
Q
.257
+.003
–.002
+.003
–.002
L1
.325
±.025
FF
H
K
L****
FF1
.257 .325
±.025
KK
X
X1
****
-BB-
JT08R (MS27500) — crimp
90° plug
* JT08RP-XX-XXX
** JTS08RP-XX-XXX
*** JTN08RP-XX-XXX
* To complete order number see page 53.
** High temperature version; to complete order number see page 53.
*** Clear iridite finish (gold color), N2O4 resistant; to complete order number see page 53.
**** Dimensions L and X1 are applicable when the end of the screw is flush with the surface BB.
All dimensions for reference only.
QX X
1
Shell H K L L1Dia. Min. Max. FF FF1KK
Size ±.010 ±.010 Max. Max. Max. Cable Cable Max. Max. Max.
8 .547 .156 1.578 1.125 .734 .082 .234 .438 .984 .755
10 .709 .188 1.578 1.156 .844 .082 .234 .516 1.016 .755
12 .829 .281 1.656 1.250 1.016 .114 .328 .594 1.078 .817
14 1.000 .438 1.844 1.406 1.141 .176 .457 .656 1.203 .943
16 1.021 .500 2.000 1.469 1.265 .238 .634 .719 1.265 1.067
18 1.145 .562 2.046 1.531 1.391 .208 .614 .781 1.328 1.149
20 1.270 .625 2.125 1.594 1.500 .302 .608 .844 1.359 1.399
22 1.395 .688 2.250 1.656 1.625 .302 .823 .906 1.421 1.399
24 1.520 .750 2.422 1.797 1.750 .332 .853 .969 1.703 1.587
* JT08RE-XX-XXX (MS27500E)
** JTS08RE-XX-XXX
*** JTN08RE-XX-XXX
22
NV
Shell L +.001 R S T Thread
Size Max. –.005 (TP) ±.016 ±.005 Class 2A
8 .234 .473 .594 .812 .120 .5625-24UNEF
10 .234 .590 .719 .938 .120 .6875-24UNEF
12 .234 .750 .812 1.031 .120 .8125-20UNEF
14 .234 .875 .906 1.125 .120 .9375-20UNEF
16 .234 1.000 .969 1.219 .120 1.0625-18UNEF
18 .234 1.125 1.062 1.312 .120 1.1875-18UNEF
20 .234 1.250 1.156 1.438 .120 1.3125-18UNEF
22 .234 1.375 1.250 1.562 .120 1.4375-18UNEF
24 .313 1.500 1.375 1.688 .147 1.5625-18UNEF
JT00 (MS27475) — hermetic
wall mounting receptacle
* JT00H-XX-XXX
* * JT00Y -XX-XXX (MS27475YXXDXXX)
*** JTS00Y -XX-XXX (MS27482YXXEXXX)
* To complete order number see page 53.
** Interfacial seal wafer; to complete order number see page 53.
*** High temperature version, interfacial seal wafer with stainless steel shell; to complete
order number see page 53.
All dimensions for reference only.
.005 DIA M
+.016
–.005
.375
±.005
.317 .308 MAX
V
L
S
R (TP)
R
(TP) S
T
(4 HOLES)
23
JT02 (MS27476) — hermetic
box mounting receptacle
LN KK
Shell +.006 +.001 R S T +.001
Size –.015 –.005 (TP) ±.016 ±.005 –.005
8 .051 .473 .594 .812 .120 .562
10 .051 .590 .719 .938 .120 .672
12 .051 .750 .812 1.031 .120 .781
14 .051 .875 .906 1.125 .120 .906
16 .051 1.000 .969 1.219 .120 1.031
18 .051 1.125 1.062 1.312 .120 1.156
20 .051 1.250 1.156 1.438 .120 1.250
22 .080 1.375 1.250 1.562 .120 1.375
24 .080 1.500 1.375 1.688 .147 1.500
* JT02H-XX-XXX
* * JT02Y -XX-XXX (MS27476YXXDXXX)
*** JTS02Y -XX-XXX (MS27476YXXEXXX)
* To complete order number see page 53.
** Interfacial seal wafer; to complete order number see page 53.
*** High temperature version, interfacial seal wafer with stainless steel shell; to complete
order number see page 53.
All dimensions for reference only.
.005 DIA M
S
R (TP)
R
(TP) S
T
(4 HOLES)
+.016
–.005
.375 L
N
.317
±.005
.308 MAX
KK
24
S (2 PLACES)
H
A
T
CMZ
.062 MIN.**
.109 MAX
O RING
N
RR
JT07 (MS27477) — hermetic
jam nut receptacle
* JT07H-XX-XXX
*** JT07Y -XX-XX (MS27477YXXDXXX)
**** JTS07Y -XX-XXX (MS27483YXXEXXX)
★.059 Dia. Min. 3 lockwire holes. Formed lockwire hole design (6 holes) is optional.
• “D” shaped mounting hole dimensions.
* To complete order number see page 53.
** Panel Thickness
*** Interfacial seal wafer; to complete order number see page 53.
**** High temperature version, interfacial seal wafer with stainless steel shell; to complete order number see page 53.
A• H N T• RR
Shell +.000 C +.017 M +.001 S +.010 Z Thread
Size –.010 Max. –.016 ±.005 –.005 ±.016 –.000 Max. Class 2A
8 .830 1.390 1.062 .438 .473 1.250 .884 .244 .8750-20UNEF
10 .955 1.515 1.188 .438 .590 1.375 1.007 .244 1.0000-20UNEF
12 1.084 1.640 1.312 .438 .750 1.500 1.134 .244 1.1250-18UNEF
14 1.208 1.765 1.438 .438 .875 1.625 1.259 .244 1.2500-18UNEF
16 1.333 1.953 1.562 .438 1.000 1.781 1.384 .244 1.3750-18UNEF
18 1.459 2.031 1.688 .438 1.125 1.890 1.507 .244 1.5000-18UNEF
20 1.576 2.156 1.812 .464 1.250 2.016 1.634 .218 1.6250-18UNEF
22 1.701 2.280 2.000 .464 1.375 2.140 1.759 .218 1.7500-18UNS
24 1.826 2.405 2.125 .464 1.500 2.265 1.884 .218 1.8750-16UN
All dimensions for reference only.
25
JTI (MS27478) — hermetic
solder mounting receptacle
* JTIH-XX-XXX
* * JTIY -XX-XX (MS27478YXXDXXX)
*** JTSIY -XX-XXX (MS27503YXXEXXX)
* To complete order number see page 53.
** Interfacial seal wafer; to complete order number see page 53.
*** High temperature version, interfacial seal wafer with stainless steel shell;
to complete order number see page 53.
LN GGKK
Shell +.011 +.001 +.011 +.001
Size –.010 –.005 –.010 –.005
8 .078 .473 .687 .562
10 .078 .590 .797 .672
12 .078 .750 .906 .781
14 .078 .875 1.031 .906
16 .078 1.000 1.156 1.031
18 .078 1.125 1.281 1.156
20 .078 1.250 1.375 1.250
22 .107 1.375 1.500 1.375
24 .107 1.500 1.625 1.500
All dimensions for reference only.
Weld mounting hermetic receptacle also available. Consult Amphenol,
Sidney, NY for availability and dimensions.
GG .348
N
L
KK
.317 .340 MAX
+.011
–.010
±.005
26
B
.812 MAX
A
N
C
.167
DIA.
+.010
–.005
N
.562 MAX
A
1
JT — accessories
plug protection cap
N
AA
1B Dia.
Shell Dia. Dia. +.000 C +.001
Size Max. Max. –.016 Approx. –.005
8 .719 .703 .563 3.000 .473
10 .844 .828 .680 3.000 .590
12 1.000 .984 .859 3.500 .750
14 1.125 1.109 .984 3.500 .875
16 1.250 1.234 1.108 3.500 1.000
18 1.375 1.359 1.233 3.500 1.125
20 1.500 1.484 1.358 4.000 1.250
22 1.625 1.609 1.483 4.000 1.375
24 1.750 1.734 1.610 4.000 1.500
MS MS
10- Number Number
Number Suffix Suffix
Finish Suffix with chain without chain
Chromate treat -XX0
Anodic coating -XX5 CXXC CXX
Cadmium plate nickel base -XX7 AXXC AXX
Olive drab, cadmium, nickel base -XX9 BXXC BXX
Electroless nickel -XXG FXXC
FXX
For MS stamping identification, accessories must be ordered by MS part number.
If ordered by 10- part number, they will be stamped with said number.
* To complete order number, add shell size and suffix number.
For example, shell size 10 with cadmium plate, nickel base would be 10-241801-107, MS27510A10C or MS27352A10.
All dimensions for reference only.
* 10-547138-XXX (MS27510XXC)
* 10-241853-XXX (MS27352XXX)
27
A
.812 MAX
D
A
.167
DIA.
+.010
–.005
A
.531 MAX
.781 MAX
C
C
JT — accessories
receptacle protection cap
* 10-241856-XXX (MS27353XXX)
* 10-547136-XXX (MS27511XXX)
* 10-241802-XXX
For MS stamping identification, accessories must be ordered by MS part number.
If ordered by 10- part number, they will be stamped with said number.
* To complete order number, add shell size and suffix number.
For example, shell size 10 with cadmium plate, nickel base would be 10-241800-107, MS27511A10C or MS27353A10.
† 3.000 for MS27511
All dimensions for reference only.
AD
Shell Dia. C +.010
Size Max. Approx. –.000
8 .719 3.000 .891
10 .844 3.000 1.016
12 1.000 3.500† 1.141
14 1.125 3.500 1.266
16 1.250 3.500 1.391
18 1.375 3.500 1.516
20 1.500 4.000 1.641
22 1.625 4.000 1.766
24 1.750 4.000 1.891
MS MS
10- Number Number
Number Suffix Suffix
Finish Suffix with chain without chain
Chromate treat -XX0
Anodic coating -XX5 CXXC CXX
Cadmium plate nickel base -XX7 AXXC AXX
Olive drab, cadmium, nickel base -XX9 BXXC BXX
Electroless nickel -XXG FXXC
FXX
28
JT/LJT — accessories
strain relief (crimp type)
* 10-405982-XXX (MS27506XXX-2 reference M85049/49)
For MS stamping identification, accessories must be ordered by MS part number.
If ordered by 10-part number, they will be stamped with said number.
*To complete order number, add shell size and suffix number.
10-Number MS27506 M85049/49
Finish Suffix Suffix Suffix
Chromate treat -XX0 NA
Anodic coating -XX5 CXX-2 (-2-XXA)
Cadmium plate nickel base -XX7 AXX-2 NA
Olive drab, cadmium, nickel base -XX9 BXX-2 (-2-XXW)
Electroless nickel -XXG FXX-2 (-2-XXN)
Y
B Thread (Modified) BB
Dia. Dia.
Shell +.010 G L Size Modified +.000 Screw
Size –.025 Max. Max. Class 2B Minor Dia. –.011 Size
8 .125 .775 .984 .4375-28UNEF .399 – .405 .250 6-32UNC
10 .188 .837 .984 .5625-24UNEF .524 – .529 .312 6-32UNC
12 .312 .963 .984 .6875-24UNEF .649 – .654 .438 6-32UNC
14 .375 1.087 1.234 .8125-20UNEF .766 – .771 .562 6-32UNC
16 .500 1.150 1.234 .9375-20UNEF .891 – .896 .625 6-32UNC
18 .625 1.400 1.234 1.0625-18UNEF 1.002 – 1.007 .750 8-32UNC
20 .625 1.400 1.234 1.1875-18UNEF 1.135 – 1.140 .750 8-32UNC
22 .750 1.587 1.359 1.3125-18UNEF 1.252 – 1.257 .938 8-32UNC
24 .800 1.681 1.281 1.4375-18UNEF 1.377 – 1.382 1.000 8-32UNC
For example: Shell size 10 with cadmium plate, nickel base would be 10-405982-107
or M85049/49-2-10W
All dimensions for reference only.
Note: For solder type cable clamp 10-241055-XXX (M85049/49) consult Amphenol, Sidney, NY.
L
Y
BB
B
GROMMET
G
29
VIEW D ENLARGED
FOR COAXIAL USE ONLY
1.656 MAX
S
R
(TP)
S
R
(TP)
T
(4 HOLES) ML
.717
+.006
–.000
.200
FKK
N
.496
MAX
±.031
.200
V
N
±.031
D
M
.717
+.006
–.000
LJT00R (MS27466) — crimp
wall mounting receptacle
*LJT00RE-XX-XXX (MS27466E)
*LJT00RT -XX-XXX (MS27466T)
*LJT00RP-XX-XXX (MS27466P)
M N T V Thread K K
Shell F L +.000 +.001 R S Dia. Class 2A Dia.
Size Dia. Max. –.005 –.005 (TP) ±.016 ±.005 (Plated) Max.
9 .444 .813 .632 .572 .719 .938 .128 .4375-28 UNEF .608
11 .558 .813 .632 .700 .812 1.031 .128 .5625-24 UNEF .734
13 .683 .813 .632 .850 .906 1.125 .128 .6875-24 UNEF .858
15 .808 .813 .632 .975 .969 1.219 .128 .8125-20 UNEF .984
17 .909 .813 .632 1.100 1.062 1.312 .128 .9375-20 UNEF 1.110
19 1.034 .813 .632 1.207 1.156 1.438 .128 1.0625-18 UNEF 1.234
21 1.159 .906 .602 1.332 1.250 1.562 .128 1.1875-18 UNEF 1.360
23 1.284 .906 .602 1.457 1.375 1.688 .147 1.3125-18 UNEF 1.484
25 1.409 .906 .602 1.582 1.500 1.812 .147 1.4375-18 UNEF 1.610
* To complete order number see page 53.
All dimensions for reference only.
.005 DIA M
30
VIEW D ENLARGED
FOR COAXIAL USE ONLY
.844 MAX
L MAX
Z
V
N
N
P
M
.905+.006
–.000
L MAX
FKK
S
R
(TP)
SS
R
(TP)
T
(4 HOLES)
P
M
.905+.006
–.000
D
Z
1
S
LJTPQ00R (MS27656) — crimp
wall mounting receptacle (back panel mounting)
F M P Max S T V Thread K K SS Dia.
Shell Dia. L L1+.000 N Panel R +.011 Dia. Class 2A Z Dia. +.000
Size ±.010 Max. Max. –.005 Dia. Thickness (TP) –.010 ±.005 (Plated) Max Max –.016
9 .444 .453 .641 .820 .572 .234 .719 .938 .128 .4375-28 UNEF .138 .625 .662
11 .558 .453 .641 .820 .700 .234 .812 1.031 .128 .5625-24 UNEF .138 .750 .810
13 .683 .453 .641 .820 .850 .234 .906 1.125 .128 .6875-24 UNEF .138 .875 .960
15 .808 .453 .641 .820 .975 .234 .969 1.219 .128 .8125-20 UNEF .138 1.000 1.085
17 .909 .453 .641 .820 1.100 .234 1.062 1.312 .128 .9375-20 UNEF .138 1.125 1.210
19 1.034 .453 .641 .820 1.207 .234 1.156 1.438 .128 1.0625-18 UNEF .138 1.250 1.317
21 1.159 .484 .672 .790 1.332 .204 1.250 1.562 .128 1.1875-18 UNEF .168 1.375 1.442
23 1.284 .484 .672 .790 1.457 .204 1.375 1.688 .147 1.3125-18 UNEF .168 1.500 1.567
25 1.409 .484 .672 .790 1.582 .193 1.500 1.812 .147 1.4375-18 UNEF .168 1.625 1.692
* LJTPQ00RE-XX-XXX (MS27656E)
* LJTPQ00RT -XX-XXX (MS27656T)
* LJTPQ00RP-XX-XXX (MS27656P)
* To complete order number see page 53.
All dimensions for reference only.
Note: MS27656 superseded MS 27515.
.005 DIA M
31
VIEW D ENLARGED
FOR COAXIAL USE ONLY
1.656 MAX
V
.918
±.031
N
M
.717
+.006
–.000
1.219 MAX
C
S
S
D
LJT01R — crimp
line receptacle
* LJT01RE-XX-XXX
* LJT01RT-XX-XXX
M N V Thread Ref.
Shell C +.000 +.001 S Class 2A
Size Max. –.005 –.005 ±.016 (Plated)
9 1.094 .632 .572 .938 .4375-28 UNEF
11 1.188 .632 .700 1.031 .5625-24 UNEF
13 1.281 .632 .850 1.125 .6875-24 UNEF
15 1.375 .632 .975 1.219 .8125-20 UNEF
17 1.469 .632 1.100 1.312 .9375-20 UNEF
19 1.594 .632 1.207 1.438 1.0625-18 UNEF
21 1.719 .602 1.332 1.562 1.1875-18 UNEF
23 1.844 .602 1.457 1.688 1.3125-18 UNEF
25 1.969 .602 1.582 1.812 1.4375-18 UNEF
* To complete order number see page 53.
All dimensions for reference only.
32
.717
+.006
–.000
.297 MAX.
.200
M
KK
±.031
N
.905
+.006
–.000
M
KK
N
Z
L MAX
P
S
R
(TP)
S
R
(TP)
T
(4 HOLES)
1
SS
LJT02R (MS27496) — crimp
box mounting receptacle
LJTP02R (MS27505) — crimp
box mounting receptacle (back panel mounting)
* LJT02RE-XX-XXX (MS27496E)
* LJTP02RE-XX-XXX (MS27505E)
MM
1N Dia. P Max. S T KK Dia. SS Dia.
Shell L +.000 +.001 +.001 Panel R +.011 Dia. Z +.006 +.000
Size Max. –.005 –.005 –.005 Thickness (TP) –.010 ±.005 ±.031 –.005 –.016
9 .203 .632 .820 .572 .234 .719 .938 .128 .107 .433 .662
11 .203 .632 .820 .700 .234 .812 1.031 .128 .107 .557 .810
13 .203 .632 .820 .850 .234 .906 1.125 .128 .107 .676 .960
15 .203 .632 .820 .975 .234 .969 1.219 .128 .107 .801 1.085
17 .203 .632 .820 1.100 .234 1.062 1.312 .128 .107 .926 1.210
19 .203 .632 .820 1.207 .234 1.156 1.438 .128 .107 1.032 1.317
21 .234 .602 .790 1.332 .204 1.250 1.562 .128 .137 1.157 1.442
23 .234 .602 .790 1.457 .204 1.375 1.688 .147 .137 1.282 1.567
25 .234 .602 .790 1.582 .193 1.500 1.812 .147 .137 1.407 1.692
* To complete order number see page 53.
All dimensions for reference only.
.005 DIA M
33
VIEW D ENLARGED
FOR COAXIAL USE ONLY
1.656 MAX
V
.594 .325
+.003
–.002 ±.025
1.219
MAX
GROUNDING RING
GROUNDING RING
FKK
Q
L
D
.594 .325
+.003
–.002 ±.025
LJT06R (MS27467) — crimp
straight plug
* LJT06RE-XX-XXX (MS27467E)
* LJT06R T -XX-XXX (MS27467T)
* LJT06RP-XX-XXX (MS27467P)
V Thread K K
Shell F L Q Class 2A Dia.
Size Dia. Max. Max. (Plated) Max.
9 .444 1.531 .844 .4375-28 UNEF .608
11 .528 1.531 .969 .5625-24 UNEF .734
13 .683 1.531 1.141 .6875-24 UNEF .858
15 .808 1.531 1.266 .8125-20 UNEF .984
17 .909 1.531 1.391 .9375-20 UNEF 1.110
19 1.034 1.531 1.500 1.0625-18 UNEF 1.234
21 1.159 1.625 1.625 1.1875-18 UNEF 1.360
23 1.284 1.625 1.750 1.3125-18 UNEF 1.484
25 1.409 1.625 1.875 1.4375-18 UNEF 1.610
* To complete order number see page 53.
All dimensions for reference only.
34
VIEW D ENLARGED
FOR COAXIAL USE ONLY
.750 MAX.
.328 MAX.
RR
.915
.010
.062 MIN.
.125 MAX.
V
N
RR
L MAX.
FKK
C
H
S
T
A
NA
±.005 PANEL THICKNESS
±.020
.915
.010
.062 MIN.
.125 MAX.
±.005 PANEL THICKNESS
±.020
D
LJT07R (MS27468) — crimp
jam nut receptacle
* LJT07RE-XX-XXX (MS27468E)
* LJT07RT -XX-XXX (MS27468T)
* LJT07RP-XX-XXX (MS27468P)
A • H Hex N T • V Thread KK RR Thread
Shell +.000 C F +.017 L +.001 S +.010 Class 2A Dia. Class 2A
Size –.010 Max. Dia. –.016 Max. –.005 ±.016 –.000 (Plated) Max. (Plated)
9 .669 1.199 .444 .875 .625 .572 1.062 .697 .4375-28 UNEF .608 .6875-24 UNEF
11 .769 1.386 .558 1.000 .625 .700 1.250 .822 .5625-24 UNEF .734 .8125-20 UNEF
13 .955 1.511 .683 1.188 .625 .850 1.375 1.007 .6875-24 UNEF .858 1.0000-20 UNEF
15 1.084 1.636 .808 1.312 .625 .975 1.500 1.134 .8125-20 UNEF .984 1.1250-18 UNEF
17 1.208 1.761 .909 1.438 .625 1.100 1.625 1.259 .9375-20 UNEF 1.110 1.2500-18 UNEF
19 1.333 1.949 1.034 1.562 .656 1.207 1.812 1.384 1.0625-18 UNEF 1.234 1.3750-18 UNEF
21 1.459 2.073 1.159 1.688 .750 1.332 1.938 1.507 1.1875-18 UNEF 1.360 1.5000-18 UNEF
23 1.580 2.199 1.284 1.812 .750 1.457 2.062 1.634 1.3125-18 UNEF 1.484 1.6250-18 UNEF
25 1.709 2.323 1.409 2.000 .750 1.582 2.188 1.759 1.4375-18 UNEF 1.610 1.7500-18 UNS
★.059 Dia. Min. 3 lockwire holes.
Formed lockwire hole design (6 holes) is optional.
•“D” shaped mounting hole dimensions.
* To complete order number see page 53.
All dimensions for reference only.
35
LJT00 (MS27469) — hermetic
wall mounting receptacle
* LJT00H-XX-XXX
* * LJT00Y -XX-XXX (MS27469YXXD)
*** LJTS00Y -XX-XXX (MS27469YXXE)
N Dia. T RR
Shell +.001 R S Dia. Thread
Size –.005 (TP) ±.016 ±.005 Class 2A
9 .572 .719 .938 .128 .6875-24 UNEF
11 .700 .812 1.031 .128 .8125-20 UNEF
13 .850 .906 1.125 .128 .9375-20 UNEF
15 .975 .969 1.219 .128 1.0625-18 UNEF
17 1.100 1.062 1.312 .128 1.1875-18 UNEF
19 1.207 1.156 1.438 .128 1.3125-18 UNEF
21 1.332 1.250 1.562 .128 1.4375-18 UNEF
23 1.457 1.375 1.688 .147 1.5625-18 UNEF
25 1.582 1.500 1.812 .147 1.6875-18 UNEF
* To complete order number see page 53.
** Interfacial seal wafer; to complete order number see page 53.
*** High temperature version, interfacial seal wafer with stainless steel shell;
to complete order number see page 53.
All dimensions for reference only.
.005 DIA M
N
RR
1.047±.005
.741
+.010
–.000 ±.025
.659 .258
±.005
S
R
(TP)
S
R
(TP)
T
(4 HOLES)
36
LJT07 (MS27470) — hermetic
jam nut receptacle
* LJT07H-XX-XXX
* * LJT07Y -XX-XXX (MS27470YXXD)
*** LJTS07Y -XX-XXX (MS27470YXXE)
A• H Hex N T • KK RR Thread
Shell +.000 C +.017 L +.000 S +.010 +.011 Class 2A
Size –.010 Max. –.016 Max –.005 ±.016 –.000 –.000 (Plated)
9 .669 1.199 .875 .297 .572 1.062 .697 .642 .6875-24 UNEF
11 .769 1.386 1.000 .297 .700 1.250 .822 .766 .8125-20 UNEF
13 .955 1.511 1.188 .297 .850 1.375 1.007 .892 1.0000-20 UNEF
15 1.084 1.636 1.312 .297 .975 1.500 1.134 1.018 1.1250-18 UNEF
17 1.208 1.761 1.438 .297 1.100 1.625 1.259 1.142 1.2500-18 UNEF
19 1.333 1.949 1.562 .328 1.207 1.812 1.384 1.268 1.3750-18 UNEF
21 1.459 2.073 1.688 .328 1.332 1.938 1.507 1.392 1.5000-18 UNEF
23 1.580 2.199 1.812 .328 1.457 2.062 1.634 1.518 1.6250-18 UNEF
25 1.709 2.328 2.000 .328 1.582 2.188 1.759 1.642 1.7500-18 UNS
★.059 Dia. Min. 3 lockwire holes.
Formed lockwire hole design (6 holes) is optional.
• “D” shaped mounting hole dimensions.
* To complete order number see page 53.
** Interfacial seal wafer; to complete order number see page 53.
*** High temperature version, interfacial seal wafer with stainless steel shell, to complete order number see page 53.
All dimensions for reference only.
C
H
S
N
RR
KK
L
.084
T
A
.915 .062 MIN.
.125 MAX.
±.005 PANEL THICKNESS
±.025
37
LJTI (MS27471) — hermetic
solder mounting receptacle
* LJTIH-XX-XXX
* * LJTIY -XX-XXX (MS27471YXXD)
*** LJTSIY -XX-XXX (MS27471YXXE)
* To complete order number see page 49.
** Interfacial seal wafer; to complete order number see page 49.
*** High temperature version, interfacial seal wafer with stainless steel shell;
to complete order nunmber see page 49.
All dimensions for reference only.
Weld mounting hermetic receptacle also available. Consult Amphenol,
Sidney, NY for availability and dimensions.
N Dia. SS Dia. L M GG Dia. KK Dia.
Shell +.001 +.000 +.011 +.006 +.011 +.001
Size –.005 –.016 –.000 –.005 –.010 –.005
9 .572 .662 .789 .125 .750 .672
11 .700 .810 .789 .125 .844 .781
13 .850 .960 .789 .125 .969 .906
15 .975 1.085 .789 .125 1.094 1.031
17 1.100 1.210 .789 .125 1.218 1.156
19 1.207 1.317 .789 .125 1.312 1.250
21 1.332 1.442 .789 .125 1.438 1.375
23 1.457 1.567 .821 .156 1.563 1.500
25 1.582 1.692 .821 .156 1.688 1.625
L
M
.031
+.006
–.005
.304+.030
–.040
KK
N
SS
GG
38
LJT Breakaway Fail Safe
quick-disconnect with an axial pull
of lanyard
Amphenol LJT Breakaway Fail Safe Connectors provide
unequalled performance in environments requiring instant
disengagement.
Designed to provide quick disconnect of a connector plug
and receptacle with an axial pull on the lanyard, the
“Breakaway” Fail Safe connector family offers a wide range
of electrical and mechanical features:
• Instant decoupling and damage free separation
• Completely intermateable with standard LJT recep-
tacles
• Inventory support commonality through the use of
standard insert arrangements and contacts
Breakaway un-mating is initiated by applying a pull force to
the lanyard which causes the operating sleeve on the plug
to move away from the receptacle. Coupling segments on
the plug then move away from the mating receptacle while
expanding, thus releasing the receptacle. After completion
of the un-mating sequence, spring compression returns the
sleeve and segments to their original positions. Un-mating
of the plug may also be accomplished by normal rotation of
the coupling ring without affecting the breakaway capabil-
ity.
The LJT Breakaway Fail Safe connector features which provide EMI/EMP shield-
ing in excess of MIL-DTL-38999 Series I requirements:
• Solid metal-to-metal coupling
• EMI grounding fingers
• Conductive finishes
In addition to standard Breakaway connectors, Amphenol also manufactures
custom breakaway connectors including those with:
• Increased pull-force capability
• Custom lanyard lengths and backshells
• Low force separation capabilities
• Low insertion/separation force contacts
• Non-cadmium finishes
• Custom JT Series Breakaway designs have been developed for special
applications; however the LJT Series is recommended over the JT Series for
the quick-disconnect breakaway style.
Contact Amphenol Aerospace for more information on breakaway, quick-
disconnect connectors. Other Amphenol cylindrical families (MIL-DTL-38999
Series III, MIL-C-26482, MIL-C-83723) also offer breakaway quick-disconnect
connectors.
39
LJT Fail Safe 88-5388/91-5388
(MS27661)
lanyard release plug
A D Max. V Thread
Shell Dia. B Accessory L UNEF
Size Max. Max. Dia. Max. Class 2A (Plated)
11 1.393 1.797 .740 1.703 .5625-24
13 1.558 1.969 .926 1.703 .6875-24
15 1.669 2.078 1.051 1.703 .8125-20
17 1.797 2.203 1.176 1.703 .9375-20
19 1.926 2.323 1.300 1.703 1.0625-18
21 2.054 2.469 1.426 1.703 1.1875-18
23 2.183 2.594 1.551 1.703 1.3125-18
25 2.293 2.703 1.676 1.766 1.4375-18
* To complete order number see page 40-41.
All dimensions for reference only.
B
A
V
D
L
OUTER SLEEVE
MOVEMENT
DURING MATING
.275 MAX.
LANYARD
PULLED TA UT
AGAINST A
.500
±.031
DIA. MANDREL MS LANYARD LENGTH
6.250
STD.
FOR PROPRIETARY LANYARD LENGTH
SEE LANYARD LENGTH TABLE
.575
+.007
–.003
SOCKET INSERT
.019
+.012
–.003
PIN INSERT
.594
+.003
–.002
40
LJT Breakaway Fail Safe
lanyard release plug
insert availability, how to order
Contact Size
Insert Service Total 22D 20 16 12 12 8 8
Arrangement Rating Contacts Coax Coax* Twinax
11-2 I 2 2
11-35 M 13 13
11-98 I 6 6
13-4 I 4 4
13-8 I 8 8
13-35 M 22 22
13-98 I 10 10
15-5 II 5 5
15-15 I 15 14 1
15-18 I 18 18
15-19 I 19 19
15-35 M 37 37
15-97 I 12 8 4
17-6 I 6 6
17-8 II 8 8
17-26 I 26 26
17-35 M 55 55
17-99 I 23 21 2
19-11 II 11 11
19-32 I 32 32
19-35 M 66 66
21-11 I 11 11
21-16 II 16 16
21-35 M 79 79
21-39 I 39 37 2
21-41 I 41 41
23-21 II 21 21
23-35 M 100 100
23-53 I 53 53
23-54 M 53 40 9 4
23-55 I 55 55
25-4 I 56 48 8
25-19 I 19 19
25-20 N 30 10 13 4 3
25-24 I 24 12 12
25-29 I 29 29
25-35 M 128 128
25-43 I 43 23 20
25-46 I 46 40 4 2*
25-61 I 61 61
INSERT AVAILABILITY
* For RG 180/U and RG 195/U cables
only. (Check Amphenol Aerospace,
Sidney, NY for other cable applications.
For availability of other insert arrange-
ments and accessories consult Amphenol
Aerospace.
TABLE II
LANYARD LENGTH CODES
Basic MIL-DTL-38999
Part Insert
Number Arrangement
88/91-538808 11-2
06 11-35
07 11-98
10 13-4
11 13-8
13 13-98
14 13-35
18 15-5
23 15-15
22 15-18
19 15-19
20 15-35
27 17-6
28 17-8
29 17-26
30 17-35
31 17-99
37 19-11
39 19-32
40 19-35
47 21-11
48 21-16
49 21-35
50 21-41
51 21-39
57 23-21
58 23-35
59 23-53
61 23-54
60 23-55
66 25-19
74 25-20
67 25-29
68 25-35
69 25-43
70 25-61
71 25-4
72 25-24
Lanyard
Length (in.) MS Proprietary
± .250 Code
4.000 40
4.250 41
4.500 42
4.750 43
5.000 50
5.250 51
5.500 52
5.750 53
6.000 No 60
6.250 Code 61
6.500 62
6.750 Std. 63
7.000 Length 70
7.250 6.250 71
7.500 72
7.750 73
8.000 80
8.250 81
8.500 82
8.750 83
9.000 90
9.250 91
9.500 92
9.750 93
TABLE I
INSERT ARRANGEMENT CODE
LJT Lanyard Separation Forces
Shell Straight Pull 15 Degree Pull
Size (lbs. max.) (lbs. max.)
11
13 45 55
15
17
19
21 90 100
23
25
41
LJT Breakaway Fail Safe
lanyard release plug
how to order, cont.
MS27661 T 17 B 35 P A
MS Number
Service Class
Shell Size
Finish
Insert Arrangement
Contact Style
Polarizing Position
MS Number
MS Number designates MIL-DTL-38999, Series I
LJT Lanyard Release Plug
Service Class
E for environmental crimp applications (inactive for new
design)
T for environmental crimp applications with serrations on
rear threads of shell
Shell Size
MIL-DTL-38999, sizes 11 through 25
Finish
B designates corrosion resistant olive drab cadmium
plated aluminum, 500 hour extended salt spray,
EMI shielding effectiveness –50dB @ 10 GHz
specification min., 175°C
F designates electroless nickel plated aluminum,
48 hour salt spray, EMI shielding effectiveness –65dB
@10 GHz500 specification min., 200°C
These are standard finishes. Consult Amphenol Aerospace
for variations.
Insert Arrangement
MIL-DTL-38999, see insert identification chart on page 40.
Contact Style
P designates Lanyard Release plug with pin contacts
S designates Lanyard Release plug with socket contacts
Polarizing Postion
For alternate positions of connector (to prevent cross-
mating) see LJT key/keyway rotation description on page
5. (No letter is required for normal).
88 – 5388 29 – 40 P
Finish
Connector Type Identification
Shell Size and Insert
Arrangement Code
Lanyard Length Code
Contact Type/Alternate Insert Rotation
Finish
88 designates corrosion resistant olive drab cadmium
plate over nickel, 500 hour extended salt spray,
EMI –50dB @ 10 GHz specification min., 175°C
91 designates electroless nickel plated aluminum,
optimum EMI shielding effectiveness –65dB @ 10 GHz
specification min., 48 hour salt spray, 200°C
These are standard finishes. Consult Amphenol Aerospace,
Sidney, NY for variations.
Connector Type Identification
88/91-5388 designates MIL-DTL-38999, Series I LJT Lanyard
Release Plug
Shell Size and Insert Arrangement Code
Shell sizes are MIL-DTL-38999, Series III from 11 thru 25. The
basic part number selected specifies the insert arrangement.
See Table I (page 40) for coded part number that correlates to
insert arrangement.
Lanyard Length Code
See Table II (page 40) for lanyard length code number.
Contact Type/Alternate Rotations
P designates pin, S designates socket for normal positioning
of contacts. When an alternate position of the connector is
required to prevent cross-mating, a different letter (other than
P or S) is used. See alternate positioning for LJT on page 5,
then convert to Amphenol proprietary coding by the following
chart.
Pin Contacts Socket Contacts
MS Letter Amphenol Letter MS Letter Amphenol Letter
P P (normal) S S (normal)
PA E SA F
PB R SB T
PC W SC X
PD Y SD Z
HOW TO ORDER - BY MILITARY PART NUMBER
FAIL SAFE MS27661 HOW TO ORDER - BY PROPRIETARY PART NUMBER
FAIL SAFE 88-5388 OR 91-5388
42
DN
.906 MAX
DN
1.141 MAX
5.000 REF
B
DN
.906 MAX
M
.167
+.010
–.005
LJT — accessories
plug protection cap
* 10-421399-XXX
* (MS27501XXXC)
* 10-275196-XXX (MS27501)
* To complete order number, add shell size and suffix number.
For example, shell size 11 with cadmium plate, nickel base would be 10-421399-117, MS27501A11C or MS20048A11.
N
B D Dia.
Shell Dia. Dia. M +.001
Size Ref Max ±.250 –.005
9 .180 .812 3.000 .572
11 .180 .938 3.000 .700
13 .180 1.062 3.500 .850
15 .180 1.188 3.500 .975
17 .180 1.312 3.500 1.100
19 .209 1.438 3.500 1.207
21 .209 1.562 4.000 1.332
23 .209 1.688 4.000 1.457
25 .209 1.812 4.000 1.582
MS MS
10- Number Number
Number Suffix Suffix
Finish Suffix with chain without chain
Chromate treat -XX0
Anodic coating -XX5
Cadmium plate nickel base -XX7 AXXC AXX
Olive drab, cadmium, nickel base -XX9 BXXC BXX
Electroless nickel -XXG FXXC
FXX
All dimensions for reference only.
43
D
L
D
L
D
M
.167
+.010
–.005
B
3.500
APPROX
D
L
6.000 APPROX
L
1
1
.167
+.010
–.005
LJT — accessories
receptacle protection cap
* (MS27502XXXC)
* 10-427406-XXX
* 10-427950-XXX
For MS stamping identification, accessories must be ordered by MS part number.
If ordered by 10- part number, they will be stamped with said number.
* To complete order number, add shell size and suffix number.
For example, shell size 11 with cadmium plate, nickel base would be 10-427406-117, MS27502A11C or MS20047A11.
B Dia. D
Shell +.010 Dia. L L1M
Size –.000 Max Max. Max. ±.250
9 .703 .844 1.070 .844 3.000
11 .844 .969 1.070 .844 3.000
13 1.016 1.125 1.070 .844 3.500
15 1.141 1.250 1.070 .844 3.500
17 1.266 1.406 1.070 .844 3.500
19 1.391 1.500 1.070 .844 3.500
21 1.516 1.625 1.070 .844 4.000
23 1.641 1.750 1.070 .844 4.000
25 1.766 1.875 1.089 .875 4.000
MS MS
10- Number Number
Number Suffix Suffix
Finish Suffix with chain without chain
Chromate treat -XX0
Anodic coating -XX5 CXXC CXX
Cadmium plate nickel base -XX7 AXXC AXX
Olive drab, cadmium, nickel base -XX9 BXXC BXX
Electroless nickel -XXG FXXC
FXX
All dimensions for reference only.
* 10-275197-XXX (MS27502)
44
LJT — accessories
strain relief (solder type)
* 10-436792-XXX
10-Number
Finish Suffix
Chromate treat -XX0
Anodic coating -XX5
Cadmium plate nickel base -XX7
Olive drab, cadmium, nickel base -XX9
Electroless nickel -XXG
BYBB
Dia. Thread Dia.
Shell +.010 L Class 2B GG +.000
Size –.025 Max. (Plated) Max. –.011
9 .125 .859 .4375-28 UNEF .775 .250
11 .188 .859 .5625-24 UNEF .837 .312
13 .312 .859 .6875-24 UNEF .963 .438
15 .375 1.109 .8125-20 UNEF 1.087 .562
17 .500 1.109 .9375-20 UNEF 1.150 .625
19 .625 1.109 1.0625-18 UNEF 1.400 .750
21 .625 1.109 1.1875-18 UNEF 1.400 .750
23 .750 1.234 1.3125-18 UNEF 1.587 .938
25 .800 1.234 1.4375-18 UNEF 1.681 1.000
For military type cable clamp see MS27506 or M85049/49 on page 28.
* To complete order number, add shell size and suffix number.
For example: Shell size 11 with cadmium plate, nickel base would be
10-436792-117.
All dimensions for reference only.
GG
BB
B
Y
L
45
JT/LJT —
wire wrap contacts (socket)
JT/LJT CRIMP CONTACTS
PRINTED CIRCUIT BOARD/WIRE WRAP CONTACTS
JT SOCKETS
Contact JT/LJT Pins
Size MS No.
8 (Coax)* M39029/60-367
8 (Twinax) M39029/90-529**
10 (Power) M39029/58-528
12 M39029/58-365
16 M39029/58-364
20 M39029/58-363
22 M39029/58-362
22M M39029/58-361
22D M39029/58-360
JT Sockets
MS No.
NA
NA
NA
M39029/57-359
M39029/57-358
M39029/57-357
M39029/57-356
M39029/57-355
M39029/57-354
LJT Sockets
MS No.
M39029/59-366
M39029/91-530
M39029/56-527
M39029/56-353
M39029/56-352
M39029/56-351
M39029/56-350
M39029/56-349
M39029/56-348
Contact Stickout Max/Min (See Illustration)
PCB Tail
Contacts Size Dia. MS27472 MS27497 MS27499 MS27508 MS27473 MS27474
10-407553-15 22M .019 .379 .379 .577 .577 .379 .379
.305 .305 .506 .506 .305 .305
10-407553-45 22M .019 .156 .156 .354 .354 .156 .156
.082 .082 .283 .283 .082 .082
10-407553-55 22M .019 .268 .268 .466 .466 .268 .268
.194 .194 .395 .395 .194 .194
10-407553-85 22M .019 .104 .104 .302 .302 .104 .104
.035 .035 .236 .236 .035 .035
10-497641-25 20 .019 .257 .257 .455 .455 .257 .257
.204 .204 .406 .406 .204 .204
10-497641-45 20 .019 NS NS .192 .192 NS NS
.143 .143
10-497631-25 16 .062 .392 .392 .590 .590 .392 .392
.339 .339 .541 .541 .339 .339
Wire Wrap Tail
Contacts Square
10-407573-15 22D .025 .058 .058 .256 .256 .058 .058
NS NS .194 .194 NS NS
10-407573-35 22D .025 .199 .199 .397 .397 .199 .199
.130 .130 .331 .331 .130 .130
10-407573-65 22D .025 .364 .364 .562 .562 .364 .364
.299 .299 .500 .500 .299 .299
All dimensions for reference only. Consult Amphenol,
Sidney, NY for specific contact contour stickout data.
NS designates No Stickout.
See also catalog 12-170, Amphenol Cylindrical
Connectors for PCB Applications. This catalog
provides the most commonly used insert pattern pin-
out drawings which have been tooled for the purpose
of attaching cylindrical connectors to printed circuit
boards.
CONTACT
STICKOUT MAX. / MIN.
Above part numbers include standard finish designation - gold plating over suitable underplate in accordance
with MIL-C-39029. For other finish variations, consult Amphenol, Sidney, NY.
Note: 22M and 22D contacts are interchangeable.
NS - No Stickout
* For use with RG180B/U and RG195A/U cable. For other size 8 coax or optional sizes 12 and 18 coax
contacts available for use in JT/LJT connectors, see catalog 12-030, or consult Amphenol, Sidney, NY.
** For use with 17/M176-00002 cable.
† Optional design - see slash sheet MS39029
For further contact options available for use in JT/LJT connectors (thermocouple, fiber optics), consult
Amphenol, Sidney, NY.
crimp contacts, printed circuit board,
46
LJT
wire wrap contacts (sockets)
PRINTED CIRCUIT BOARD/WIRE WRAP CONTACTS
LJT SOCKETS
Contact Stickout Max/Min (See Illustration) MS27368
PCB Tail MS27466 MS27656 MS27496 MS27505 MS27467 LJT07RE
Contacts Size Dia LJT00RT LJTPQ00RT LJT02RE LJTP02 LJT06RE (9-17) (19-25)
10-497623-15 22D .019 .328 .313 .532 .532 .328 .307 .285
.263 .248 .467 .466 .263 .242 .225
10-497623-25 22D .019 .905 .890 1.109 1.109 .905 .884 .862
.840 .825 1.044 1.043 .840 .819 .802
10-497623-35 22D .019 .385 .370 .589 .589 .385 .364 .342
.320 .305 .524 .523 .320 .299 .282
10-497623-45 22D .019 .245 .230 .449 .449 .245 .224 .202
.180 .165 .384 .383 .180 .159 .142
10-497623-75 22D .019 .183 .168 .387 .387 .183 .162 .140
.118 .103 .322 .321 .118 .097 .080
10-497623-105 22D .019 .065 .050 .269 .269 .065 .044 .022
.000 NS .204 .203 .000 NS NS
10-497623-145 22D .019 .646 .631 .850 .850 .646 .625 .603
.576 .561 .780 .779 .576 .555 .538
10-497623-155 22D .019 .460 .445 .664 .664 .460 .439 .417
.395 .380 .599 .598 .395 .374 .357
10-497643-15 20 .019 .385 .370 .589 .589 .385 .364 .342
.339 .316 .535 .536 .331 .310 .293
10-497643-25 20 .019 .250 .235 .454 .454 .250 .229 .207
.204 .181 .400 .401 .196 .175 .158
10-497643-35 20 .019 .592 .577 .796 .796 .592 .571 .549
.546 .523 .742 .743 .538 .517 .500
10-497643-45 20 .019 .175 .160 .379 .379 .175 .154 .132
.129 .106 .325 .326 .121 .100 .083
10-497650-15 16 .040 .292 .277 .496 .496 .292 .271 .249
.246 .223 .442 .443 .238 .217 .200
Wire Wrap Tail
Contacts Square
10-497577-15 22D .025 .192 .177 .396 .396 .192 .171 .149
.127 .112 .331 .330 .127 .106 .089
10-497577-25 22D .025 .039 .024 .243 .243 .039 .018 NS
NS NS .178 .177 NS NS NS
10-497577-35 22D .025 .238 .223 .442 .442 .238 .217 .195
.173 .158 .377 .376 .173 .152 .135
10-497577-55 22D .025 .603 .588 .807 .807 .603 .582 .560
.538 .523 .742 .741 .538 .517 .500
10-497621-15 20 .025 .188 .173 .392 .392 .188 .167 .145
.146 .123 .342 .343 .138 .117 .100
10-497621-25 20 .025 .642 .627 .846 .846 .642 .621 .599
.600 .577 .796 .797 .592 .571 .554
10-497621-35 20 .025 .345 .330 .549 .549 .345 .324 .302
.303 .280 .499 .500 .295 .274 .257
Above part numbers include standard finish designation – gold plating over suitable underplate in accordance
with MIL-C-39029. For other finish variations, consult Amphenol, Sidney, NY.
Note: 22M and 22D contacts are interchangeable.
NS – No Stickout
For other contact options available for use in LJT connectors (thermocouple, fiber optic), consult Amphenol,
Sidney, NY.
All dimensions for reference only. Consult Amphenol,
Sidney, NY for specific contact contour stickout data.
NS designates No Stickout.
See also catalog 12-170, Amphenol Cylindrical
Connectors for PCB Applications. This catalog
provides the most commonly used insert pattern pin-
out drawings which have been tooled for the purpose
of attaching cylindrical connectors to printed circuit
boards.
CONTACT
STICKOUT MAX. / MIN.
47
Contact Stickout Max/Min (See illustration page 42)
PCB Tail
Contacts Size Dia
10-407552-15 22M .019
10-407552-55 22M .019
10-407552-85 22M .019
10-407552-95 22M .019
10-407552-115 22M .019
10-497640-15 20 .019
10-497640-25 20 .019
10-497640-45 20 .019
10-497640-65 20 .019
10-497596-15 20 .025
10-497596-25 20 .025
10-497596-35 20 .025
10-497596-55 20 .025
10-497695-15 16 .040
10-497630-25 16 .062
10-497630-35 16 .062
10-497630-45 16 .062
10-597502-15 12 .081
Wire Wrap Tail
Contacts Square
10-407572-15 22D .025
10-407572-35 22D .025
10-407572-45 22D .025
10-407572-75 22D .025
10-407584-25 20 .025
10-407584-35 20 .025
MS27472 MS27497 MS27499 MS27508 MS27473 MS27474
JT00RT JTPQ00RT JT02RE JTP02RE JT06RT JT07RT
.379 .379 .577 .577 .379 .379
.317 .317 .520 .520 .317 .317
.268 .268 .466 .466 .268 .268
.206 .206 .409 .409 .206 .206
.104 .104 .302 .302 .104 .104
.047 .047 .250 .250 .047 .047
NS NS .105 .105 NS NS
.057 .057
.042 .042 .240 .240 .042 .042
NS NS .188 .188 NS NS
.392 .392 .590 .590 .392 .392
.335 .335 .538 .538 .335 .335
.257 .257 .455 .455 .257 .257
.200 .200 .403 .403 .200 .200
NS NS .192 .192 NS NS
.140 .140
.182 .182 .380 .380 .182 .182
.125 .125 .328 .328 .125 .125
.102 .102 .300 .300 .102 .102
.049 .049 .252 .252 .049 .049
.192 .192 .390 .390 .192 .192
.139 .139 .342 .342 .139 .139
.273 .273 .471 .471 .273 .273
.220 .220 .423 .423 .220 .220
.390 .390 .588 .588 .390 .390
.337 .337 .540 .540 .337 .337
.299 .299 .497 .497 .299 .299
.242 .242 .445 .445 .242 .242
.392 .392 .590 .590 .392 .392
.335 .335 .538 .538 .335 .335
.104 .104 .302 .302 .104 .104
.047 .047 .250 .250 .047 .047
.152 .152 .350 .350 .152 .152
.099 .099 .302 .302 .099 .099
.272 .272 .470 .470 .272 .272
.215 .215 .418 .418 .215 .215
.058 .058 .256 .256 .058 .058
.005 .005 .208 .208 .005 .005
.199 .199 .397 .397 .199 .199
.142 .142 .345 .345 .142 .142
.299 .299 .497 .497 .299 .299
.242 .242 .445 .445 .242 .242
.565 .565 .763 .763 .565 .565
.512 .512 .715 .715 .512 .512
.649 .649 .847 .847 .649 .649
.596 .596 .799 .799 .596 .596
.352 .352 .550 .550 .352 .352
.299 .299 .502 .502 .299 .299
JT/LJT —
wire wrap contacts (pins)
PRINTED CIRCUIT BOARD/WIRE WRAP CONTACTS,
JT/LJT PINS
Above part numbers include standard finish designation – gold plating over suitable underplate in accordance with MIL-C-39029.
For other finish variations, consult Amphenol, Sidney, N.Y.
Note: 22M and 22D contacts are interchangeable.
NS – No Stickout
For other contact options available for use in JT/LJT connectors, (thermocouple, fiber optic, high speed coax, twinax, triax, quadrax
and differential twinax) consult Amphenol, Sidney, NY.
printed circuit board and
MS27468
MS7466 MS27656 MS27496 MS27505 MS27467 LJT07RE
LJT00RT LJTPQ00RT LJT02RE LJTP02RE LJT06RE (9-17) (19-25)
.372 .357 .576 .576 .372 .351 .329
.317 .302 .521 .520 .317 .296 .279
.261 .246 .465 .465 .261 .240 .218
.206 .191 .410 .409 .206 .185 .168
.097 .082 .301 .301 .097 .076 .054
.047 .032 .251 .250 .047 .026 .009
NS NS .104 .104 NS NS NS
.058 .057
.035 .020 .239 .239 .035 .014 NS
NS NS .189 .188 NS NS
.385 .370 .589 .589 .385 .364 .342
.335 .320 .539 .538 .335 .314 .297
.250 .235 .454 .454 .250 .229 .207
.200 .185 .404 .403 .200 .179 .162
NS NS .191 .191 NS NS NS
.141 .140
.175 .160 .379 .379 .175 .154 .132
.125 .110 .329 .328 .125 .104 .087
.095 .080 .299 .299 .095 .074 .052
.049 .034 .253 .252 .049 .028 .011
.185 .170 .389 .389 .185 .164 .142
.139 .124 .343 .342 .139 .118 .101
.266 .251 .470 .470 .266 .245 .223
.220 .205 .424 .423 .220 .199 .182
.383 .368 .587 .587 .383 .362 .340
.337 .322 .541 .540 .337 .316 .299
.292 .277 .496 .496 .292 .271 .249
.242 .227 .446 .445 .242 .221 .204
.385 .370 .589 .589 .385 .364 .342
.335 .320 .539 .538 .335 .314 .297
.097 .082 .301 .301 .097 .076 .054
.047 .032 .251 .250 .047 .026 .009
.145 .130 .349 .349 .145 .124 .102
.099 .084 .303 .302 .099 .078 .061
.265 .250 .469 .469 .265 .244 .222
.215 .200 .410 .418 .215 .194 .177
.051 .036 .255 .255 .051 .030 .008
.005 NS .209 .208 .005 NS NS
.192 .177 .396 .396 .192 .171 .149
.142 .127 .346 .345 .142 .121 .104
.292 .277 .496 .496 .292 .271 .249
.242 .227 .446 .445 .242 .221 .204
.558 .543 .762 .762 .558 .537 .515
.512 .497 .716 .717 .512 .491 .474
.642 .627 .846 .846 .642 .621 .599
.596 .581 .800 .799 .596 .575 .558
.345 .330 .549 .549 .345 .324 .302
.299 .284 .503 .502 .299 .278 .261
48
JT/LJT – accessories
universal “header assembly” for flex print or
PC board mounting
Mounts to all MIL-DTL-38999 and
MIL-C-26482 Connectors
The use of connectors with printed circuit
termination is rapidly gaining popularity due
to the rise of high volume, vapor phase or
wave solder manufacturing processes. Ter-
mination of this style of connector to flex print
or a printed circuit board represents a major
cost in the manufacturing process for users.
When adding flex or printed circuit board
assemblies to an expensive filter or filter/
transient protection connector, the total cost
of a failed solder joint, a bent pin, or an un-
anticipated electrical failure becomes prohibitive. The universal header as-
sembly from Amphenol will provide for easy separation of the connector from
the board on these occasions.
Header Assemblies Provide Cost Savings
Incorporation of the header assembly provides the user with time and cost
saving potentials. These header assemblies can be vapor phase or wave
soldered to flex or printed circuit boards prior to the receipt of the EMI/EMP
connector. Headers can be installed to standard connectors, allowing for elec-
trical testing that would adversely affect the sensitive diodes, MOV’s or capaci-
tors in the EMI/EMP connectors. Expensive connector assemblies can be eas-
ily removed from and reattached to the header assembly as the manufacturing
process dictates.
Mounting Applications
Shell modifications are recommended, but are not necessary. The header
assembly can be attached to connectors with standard flange placement or
directly to the circuit board. The ideal application would involve either a single
flange moved all the way to the rear of the connector or a double flange. Cinch
nuts can be installed in either flange to allow easier mounting to the panel or
the header assembly. The forward flange would mount the connector to the
panel; the rear flange would be used to mount the header assembly. Various
types of captivated or loose attaching screws can be utilized for unique appli-
cations.
Amphenol universal headers are slotted to allow mounting to all series of MIL-
DTL-38999 or MIL-C-26482 connectors without special alterations. They are of
similar dimension as the flange of the mounting connector and would be ap-
proximately .185 inches (4.70 mm) thick.
Incorporates a Shorter Pin/Socket Contact
The heart of the header assembly is a short pin/socket contact. The tail of the
contact would accommodate standard through-hole diameters and thickness
of the flex or printed circuit board materials. The socket is imbedded in the
molded material, making electrical engagement with the printed circuit tail of
the connector.
Cylindrical Configuration
• 3 PCB stickout dimensions are available.
• Size 22D contacts use .175 thick headers
• Size 16 to 20 contacts use .195 thick
headers
• Consult Amphenol, Sidney NY for additional
configurations.
• Headers for cylindrical connectors accom-
modate up to 128 pins. See pages 4-11 for
JT/LJT mating connector contact layouts.
Also see catalog 12-092 for MIL-DTL-
38999, Series III mating contact layouts and
catalog 12-070 for MIL-C-26482 mating
contact layouts.
Mounting to Rectangular ARINC
Connectors
• Headers for ARINC connector arrange-
ments accommodate up to 150 pins
• Consult Amphenol, Sidney, NY for ARINC
configurations and detailed dimensions.
Materials
• Body is molded from Torlon or PPS
(Polyphenylene Sulfide)
• Electrical engagement areas of the header
contact are plated with .00003 inches
minimum of gold over .00005 inches
minimum of nickel.
Headers provide easy
separation of the
connector from the PC
board.
49
Shell Size Arrangement Contact
Designation* Number PCB Stickout**
Suffix*** Suffix B ± .015
Stickout
08 1 .120
10 2 .185
12 3 .270
14
16
18
20
22
24
R2
R1
S
T
TT
VISUAL
INDICATOR NOTCH
FOR TOP C OF
INSERT PATTERN
(SIZE & CONFIGURATION
OPTIONAL)
L
F RADIUS B
PCB STICKOUT
(SEE SUFFIX CHART BELOW)
G
.020 ± .001
.040 ± .001 (SIZE 20)
.0625 ± .0010 (SIZE 16)
B
PCB STICKOUT
(SEE SUFFIX CHART BELOW)
.050
G
SIZE 22
CONT A CT VIEW
SIZE 16 AND 20
CONT A CT VIEW
JT/LJT – accessories
universal “header assembly” for flex print or
PC board mounting, cont.
The drawing below shows the standard universal adapter for use with MIL-DTL-38999 and MIL-C-26482 connectors.
Consult Amphenol Aerospace, Sidney NY for drawings of headers for ARINC configurations.
Assembly Shell F G S T R1 R2 TT
Part Number Size Radius ± .005 ± .005 + .008 TP† TP† + .008
– .006 – .006
21-904008-XX( ) 8/9 .094 .938 .128 .719 .594 .216
21-904010-XX( ) 10/11 .094 1.031 .128 .812 .719 .194
21-904012-XX( ) 12/13 .094 1.125 .128 .906 .812 .194
21-904014-XX( ) 14/15 .125 1.219 .128 .969 .906 .173
21-904016-XX( ) 16/17 .125 1.312 .128 1.062 .969 .194
21-904018-XX( ) 18/19 .125 1.438 .128 1.156 1.062 .194
21-904020-XX( ) 20/21 .125 1.562 .128 1.250 1.156 .194
21-904022-XX( ) 22/23 .125 1.688 .154 1.375 1.250 .242
21-904024-XX( ) 24/25 .125 1.812 .154 1.500 1.375 .242
Assemblies containing Size 22 contacts only: .175
Assemblies containing Size16 or 20 contacts: .195
See Suffix Chart
† TP designates true position dimensioning.
ASSEMBLY NUMBER SUFFIX CHART
Insert
Arrangement
Suffix
from
MIL-STD-1560
or MIL-STD-1669
HOW TO ORDER INFORMATION
For Universal Adapter Used with MIL-DTL-38999 Connectors
Use coded number as follows:
21-9040 XX - XX X
Designates Amphenol
Interface Adapter
Shell size designation for
MIL-DTL-38999 Series I, II.
See Suffix chart.
Arrangement number - See MIL-STD-1560
or MIL-STD-1669. See insert availability charts on
pages 4-6.
Contact PCB Stickout designation
See Suffix chart.
Universal adapters are also used with MIL-DTL-38999 Series III and with MIL-C-26482, Series 1
and 2. For how to order information on adapters to be used with ARINC connectors, consult
Amphenol, Sidney NY.
* Shell size designation for MIL-DTL-38999 Series I, II, III and IV
and MIL-C-26482 Series 1 and 2.
Examples: Shell size 9 use 08. Shell size 25 use 24.
* * Size 22 contacts available in all 3 stickout lengths.
Size 16 and 20 contacts available only in .185 and .270 lengths.
*** Insert arrangement 14-97 and 15-97 are not available at this time.
Consult Amphenol, Sidney NY for information.
50
JT/LJT —
plastic protection caps, sealing plugs
THERMOCOUPLE CONTACTS
PLASTIC PROTECTION CAPS SEALING PLUGS
Contact JT/LJT
Size Material Pins
Chromel 10-407862-310
Alumel 10-407862-320
20 Iron 10-407862-335
Constantan 10-407862-342
JT
Sockets
10-407863-310
10-407863-320
10-407863-335
10-407863-342
LJT
Sockets
10-407236-310
10-407865-320
10-407865-335
10-407865-342
Partial listing. If you do not see the contact for your application, consult Amphenol, Sidney, N.Y.
Plug Receptacle Contact Sealing Plugs
Size Proprietary No MS No
8 (Coax) 10-482099-8 MS27488-8
8 (Twinax) T3-4008-59P N/A
10 (Power) 10-576225 N/A
12 10-405996-12 MS27488-12
16 10-405996-16 MS27488-16
20 10-405996-20 MS27488-20
22 10-405996-22 MS27488-22
22M 10-405996-22 MS27488-22
22D 10-405996-22 MS27488-22
LJT
9 10-70506-14 10-70500-10
11 10-70506-16 10-70500-12
13 10-70506-18 10-70500-14
15 10-70506-20 10-70500-16
17 10-70506-22 10-70500-18
19 10-70506-24 10-70500-20
21 10-70576-24 10-70500-22
23 10-70506-28 10-70500-24
25 10-558651-25 10-70506-28
thermocouple contacts,
JT
8 10-70500-10 10-70506-10S
10 10-70506-14 10-70506-12
12 10-70506-16 10-70506-14
14 10-70506-18 10-70506-16
16 10-70506-20 10-70506-18
18 10-70506-22 10-70506-20
20 10-70506-24 10-70506-22
22 10-70576-24 10-70506-24
24 10-70506-28 10-70576-24
51
JT/LJT
application tools
L-844 covering the JT-R, LJT-R and MS series connectors)
will provide reliable crimped wire to contact terminations.
There is a possibility of additional crimping tools other than
those included being available at present or in the future for
this specific application.
For additional information on coaxial contacts, consult
Amphenol catalog section 12-130.
CRIMPING TOOLS
Contact Crimping Turret Die
Size/Type Tool or Positioner
12 Pin and Socket M22520/1-01 M22520/1-04
16 Pin and Socket M22520/1-01 M22520/1-04
M22520/7-01 M22520/7-04
M22520/1-01 M22520/1-04
20 Pin and Socket M22520/2-01 M22520/2-10
M22520/7-01 M22520/7-08
22, 22D, 22M Pin M22520/2-01 M22520/2-09
M22520/7-01 M22520/7-07
22, 22D, 22M Socket (LJT-R) M22520/2-01 M22520/2-07
M22520/7-01 M22520/7-05
22D Socket (JT-R) M22520/2-01 M22520/2-06
M22520/7-01 M22520/7-06
8 Twinax Center Pin and Socket M22520/2-01 M22520/2-37
8 Twinax Intermediate M22520/5-01 M22520/5-200
Outer Pin & Socket
Contact Crimping Turret Die
Size/Type Tool or Positioner
8 (Coaxial Inner Pin and Socket) M22520/2-01 M22520/2-31
M22520/5-01 M22520/5-05
Die Closure B
8 Coaxial Outer Pin M22520/5-01 M22520/5-41
and Socket Die Closure B
M22520/10-01 M22520/10-07
Die Closure B
16 Coaxial Inner M22520/2-01 M22520/2-35
Pin and Socket
16 Coaxial Outer M22520/4-01 M22520/4-02
Pin and Socket
12 Coaxial Inner Pin and Socket M22520/2-01 M22520/2-34
12 Coaxial Outer Pin and Socket M22520/31-01 M22520/31-02
10 (Power) †† ††
Plastic Tools Metal Tools
Angle Type Straight Type
Use with Color MS Proprietary Proprietary Color
Contact Size Part Number Code Part Number Part Number Part Number Code
10 (Power) M81969/14-05* Gray/White M81969/8-11 † † Green
12 M81969/14-04* Yellow/(White) M81969/8-09 11-8674-12 11-8794-12 Yellow
16 M81969/14-03* Blue/(White) M81969/8-07 11-8674-16 11-8794-16 Blue
20 M81969/14-10* Red/(Orange) M81969/8-05 11-8674-20 11-8794-20 Red
22 M81969/14-09 Brown/(White) M81969/8-03 11-8674-22 11-8794-22 Brown
22D, 22M M81969/14-01* Green/(White) M81969/8-01 11-8674-24 11-8794-24 Black
8 Coaxial None Required
8 Twinax None M81969/46-06** None Red
INSERTION TOOLS
Where 2 or 3 tools are listed for a contact size, only one tool and its die or positioner are required to crimp the contact. The above
crimping tools and positioners are available from the approved tool manufacturer.
Plastic Tools Metal Tools
Angle Type
For Unwired Contacts Straight Type
Use with Color Proprietary MS Proprietary Proprietary Color
Contact Size Part Number Code Part Number Part Number Part Number Part Number Code
10 (Power) M81969/14-05* (Green)/White † M81969/8-12 † † Green/White
12 M81969/14-04* (Yellow)/White 11-10050-11 M81969/8-10 11-8675-12 11-8795-12 Yellow/White
16 M81969/14-03* (Blue)/White 11-10050-10 M81969/8-08 11-8675-16 11-8795-16 Blue/White
20 M81969/14-10* (Red) Orange 11-10050-9 M81969/8-06 11-8675-20 11-8795-20 Red/White
22 M81969/14-09* (Brown)/White 11-10050-8 M81969/8-04 11-8675-22 11-8795-22 Brown/White
22D, 22M M81969/14-01* (Green)/White 11-10050-7 M81969/8-02 11-8675-24 11-8795-24 Green/White
8 Coaxial M81969/14-12 Green None None 11-9170 DRK264-8†† N/A
8 Twinax M81969/14-12 Green None M81969/46-12** 11-9170 N/A N/A
REMOVAL TOOLS
The M81969/8, 11-8674, 11-8675, and 11-8794 metal contact insertion and
removal tools will accommodate wires having the maximum outside diameter as
follows: Contact size 12– .155, 16– .109, 20– .077, 22, 22D, 22M– .050. When
wire diameters exceed those specified, the plastic tools must be used.
* Double ended insertion/removal tool.
** Twinax insertion and removal tools are available only in a straight
type, metal version.
† To be determined
† † Contact Daniels Manufacturing Co. for availability.
The following data includes information pertaining to the
application tools which have been established for crimping,
inserting, and removing the size 12, 16, 20, 22, 22D and 22M
contacts incorporated in the JT-R, LJT-R and MIL-DTL-38999
(MS) series connectors as applicable.
All crimping tools included are the “full cycling” type and when
used as specified in the installation instructions (L-624 and
52
JT/LJT —
contact connectors
Amphenol® LJT and JT Series solder contact connectors
are qualified to Series I and II respectively, of MIL-C-27599.
These connectors use a rigid, hard dielectric insert, which
is molded around the pin and socket contacts. This permits
a higher degree of pressurization across an interface, of up
to 1x10-3 cc/sec. Contact positional tolerances are also
considerably reduced, with less chance of pin bending.
Shell styles similar to MIL-DTL-38999 crimp connectors are
available along with a large variety of contact sizes and
insert patterns.
A complete line of accessories is also available.
For additional information on Amphenol® LJT/JT solder type
connectors, ask for Product Data Sheet 158. Contact your
local sales office or
Amphenol Corporation
Amphenol Aerospace
40 – 60 Delaware Avenue
Sidney, New York 13838-1395
Telephone:607-563-5011
Fax:607-563-5157
www.amphenol-aerospace.com
JT Solder
LJT Solder
Wall Mounting
Receptacle Straight
Plug
Wall Mounting
Receptacle Straight
Plug
solder
53
MS27473 E14 A18 P A
MS Number
Service Class
Shell Size
Finish
Insert Arrangement
Contact Style (P or S)
Alternate Keying (No letter required for normal position)
JT/LJT
how to order
PROPRIETAR Y P ART NUMBER
MILIT ARY TYPES
Military Service Class
E environmental, same as RE
T environmental, same as RT
P potting, same as RP
Y hermetically sealed, same as Y
For finish variations see above chart. For additional data, see page 3.
For MS depictions and dimensional data see applicable Mil-Spec.
(MIL-DTL-38999, MIL-C-27599).
Military Fail Safe lanyard release plug MS27661 - See pages 38-41
for ordering.
† Not applicable to box mounting style or LJT Series I.
†† Not applicable to box mounting style.
** For more inf ormation on Coax/Triax/Twinax Ground
Plane Connectors, see page 55.
* Grounding fingers standard on all LJT plugs
Amphenol V endor Identification/FSCM 77820
3. Service Class: Crimp contacts/connectors:
“RP” for potting crimp applications. Supplied with spacer
grommet and potting boot.††
“RE” for environmental crimp applications. Supplied with a
grommet and compression nut.† Can be supplied
with strain relief integral with compression nut “RE
(SR)”. (JT Series only).
“RGF”* electroless nickel plated ground plane aluminum,
200°C
“RGW”** olive drab cadmium plated ground plane aluminum,
175°C
“RT” for environmental applications. Supplied without rear
accessories. Design provides serrations on rear
threads of shells.
For additional information defining description of service class,
consult Amphenol, Sidney, NY.
4. Shell Size:
JT shell sizes available from 8 through 24.
LJT shell sizes available from 9 through 25.
5. Insert Arrangement:
22-2 designates insert arrangement. Refer to pages 4-11 for
insert availability.
6 . Contact Style:
P designates pin contacts; S designates socket contacts.
7. Alternate Keying:
“A” designates alternate keying connector assembly. Other
basic alternate keys are “B”, “C” and “D”. No letter required for
normal (no rotation) position. See pages 4 and 5.
8 . Strain Relief Option:
“SR” designates a strain relief clamp. Strain reliefs are
available only on “A”, “C” and “RE” class connectors.
9. Finish Variation Suffix:
See finish variations available in table below:
Military
Finish Finish Finish Plus
Finish Data Suffix “SR” Suffix
Cadmium plated nickel base A (SR)
Olive drab cadmium plate nickel base B (014) (386)
Electroless nickel F (023) (424)
Electroless nickel, space compatible (453) (467)
Anodic coating (Alumilite) C (005) (300)
Chromate treated (Iridite 14-2) (011) (344)
Passivated steel E – –
Nickel-PTFE (038)
To more easily illustrate ordering procedure, part number JT00RE-22-2PA( ) is
shown as follows:
P ART NUMBER
JT 00 RE - 22 - 2 P A ( )
1 2 3 4 5 6 7 8/9
See code below:
1. Connector T ype:
JT designates standard Junior Tri-Lock connector
LJT designates long Junior Tri-Lock connector
LJTS JTS designates high temperature connector
LJTN JTN designates chemical and fuel resistant
JTL designates miniature mounting dimensions
JTLN designates miniature mounting dimensions - chemical resistant
JTLS designates miniature mounting dimensions - high temperature
LJTPQ JTPQ designates back panel mounted wall mounting receptacle
LJTP JTP designates back panel mounted box mounting receptacle
LJTPN JTPN designates back panel mounted - chemical resistant
LJTPS JTPS designates back panel mounted - high temperature
JTG designates plug with grounding fingers*
JTNG designates plug with grounding fingers* - chemical resistant
2. Shell Style
00 designates wall mount receptacle
01 designates line mount receptacle
02 designates box mount receptacle
06 designates straight plug
07 designates jam nut receptacle
08 designates 90 degree plug
I designates solder mount receptacle - hermetic
Lanyard Release Connectors (See pages 38-41 for ordering)
88 designates Fail Safe lanyard release plug with corrosion resistant olive
drab cadmium plate over nickel shells
91 designates Fail Safe lanyard release plug with electroless nickel plated
aluminum shells.
3. Service Class: Solder contacts/connectors:
“P” for potting applications - These connectors are supplied with a potting
boot.† All shells are designed with integral featues to retain potting boots.
“A” for general applications.
“A (SR)” - threaded rear design with strain relief.†
“C” for pressurized applications
“C (SR)” - threaded rear design with strain relief.†
“E” box mount and thru-bulkhead only with no backend threads.
“H” for hermetic applications - Fused compression glass sealed inserts.
Leakage rate less than .01 micron cu. ft./hr. (1 x 10-7 cc/sec.) at 15 psi
differential.
“Y” same as “H” with interfacial seal.
“T” for MS27599A applications - general duty, pressurized
(receptacles only)
54
JT/LJT
specials - filter protection connectors, Aquacon
connectors and 38999 for PCB attachment
FLEX TERMINATION ASSEMBLIES FOR PRINTED CIRCUIT
BOARD APPLICATIONS
Flex circuits are available for MIL-DTL-38999 Series I and II connec-
tors in flat and sculptured styles. Amphenol provides flex termination
assemblies for printed circuit board attachment through Amphenol
ACT, Advanced Circuit Technology. Sculptured® Flexible Circuits have
built-in terminations that eliminate the failures associated with crimped
or solder-on contacts. They plug into a printed circuit board and create
a self-locking terminal pad which eliminates the need for an addi-
tional interconnect to the PCB. They are designed to meet specific
lengths, current carrying capacities and to fit the precise geometric
shape of the connector to board package. For more information see
ACT brochure.
FILTER/TRANSIENT PROTECTION
Filter and/or voltage surge arresting devices
are integrated into a JT or an LJT connector to
eliminate conventional bulky exterior filtering
systems. This unique design reduces weight,
space and user testing while providing sys-
tem protection from EMI/ EMP. Ask for publi-
cation 12-120 or contact Amphenol, Sidney,
NY for complete information on Amphenol®
EMI Filter/Transient Protection Connectors.
AQUACON
Specially designed connectors for underwater and other fluid-immer-
sion applications are available in all Amphenol JT/LJT insert arrange-
ments. Aquacon AJ (immersible JT) or AL (immersible LJT) series
connectors offer 1500 psi capability, visual mating indication to as-
sure proper sealing upon mating, and design flexibility at low cost.
Corrosion resistant materials and environment-proof molded cable
terminations provide a connector well suited to immersed usage. AJ
and AL Series Aquacon Connectors represent the utmost in general
purpose immersible connectors. Refer to catalog 12-140 for addi-
tional data.
JT with Filter Protection LJT with Filter Protection
For more information on these products visit website:
www.amphenol-aerospace.com
MIL-DTL-38999 WITH PC TAIL CONTACTS
Amphenol provides cylindrical connectors with
PC tail contacts for solder mounting on printed
circuit boards. They available in MIL-DTL-38999
Series I, II and III as well as other mil-spec and
proprietary cylindricals. These connectors incor-
porate PCB contacts in sizes 16, 20 and 22D.
Most popularly used arrangements are shown
with pin-out dimensional layouts in Amphenol
catalog 12-170, Cylindrical Connectors for PCB
Application.
55
JT/LJT
specials - ground plane connectors and shielded
contacts
Amphenol offers MIL-DTL-38999 Series I and II* connectors for data bus, LAN
and coax/triax/twinax transmission lines with conductive inserts that ground the
outer conductor of the coax, triax or twinax contact to the shell. These connec-
tors are sold “less contacts”. They will accommodate size 8 coax, triax or twinax
contacts or size 12 and 16 coax contacts.
The insert availability chart on pages 4-6 indicate the patterns that are available
in a ground plane version, (see those designated with a star symbol), and
consult how to order page for ordering procedure.
CONNECTORS WITH COAX CONTACTS
For shielded wire applications, coaxial contacts can be incorporated into MIL-
DTL-38999 connectors. Designed-in crimp or solder types are available to fit
various RG and special cables. High performance coaxial contacts eliminate
discontinuities or impedance variations due to movement of parts under axial
load. For further information on coax contacts ask for catalog 12-130.
CONNECTORS WITH CONCENTRIC TWINAX CONTACTS
The size 8 concentric twinax contact was developed for use in MIL-STD-1553
Airborne multiplex data bus applications which require high performance
interconnect characteristics in multi-pin connectors. Ideal for this application
need is the high performance Tri-Start connector with its fully scoop-proof
feature of recessed pins. (See Amphenol catalog 12-092) The concentric
twinax contact is crimp terminable to twisted-shielded cable. Other features
include:
• Provides protection from magnetic and electrostatic interfer-
ence
including nuclear electromagnetic pulse
• Maintains shield integrity through a multi-pin cylindrical
connector and does not require contact polarization within
the insert
• 175°C rated and meets performance levels of MIL-DTL-
38999 Series III connectors
• Available in size 8 and 12 contacts
• MIL-C-17/176-00002 cable termination
• Qualified to M39029/90 & /91
• Integral part of the MIL-STD-1760 interconnection system
For further information on concentric twinax contacts, consult
catalog 12-130.
CONNECTORS WITH REDUCED COMPONENT
TWINAX (RCT) CONTACTS
The RCT (Reduced Component Twinax) contact meets MIL-C-
39029/90 and /91 requirements for intermateability and perfor-
mance while reducing the number of user-assembled compo-
nents from seven to three. The inner conductors and outer barrel
of the RCT are each terminated to the cable by a crimp joint, so
no costly assembly soldering operations are required. Features
include:
• Three user assembled components
• Available in size 8 and size 10 contacts
• MIL-C-17/176-00002 cable termination
• For installation in MIL-DTL-38999 Series III connectors
• Termination completed in only two crimping operations
• Inner conductors stripped to common length, eliminating
multiple measurements
For further information on RCT contacts, consult catalog 12-130.
Ground Plane Connector with Metallic
Insert, Power Contacts and Shielded
Twinax Contacts
Size 8 Concentric Twinax Contacts
Qualified to M39029/90 and /91
(Also available in Size 12)
Size 8 RCT (Reduced Component Twinax) Contact
(Also available in Size 10)
*MIL-DTL-38999 Series III
supersedes MIL-C-38999 Series III
