332 Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
Amphenol
MIL-DTL-26482, Series 2, Matrix ®
TABLE OF CONTENTS
MIL-DTL-26482, Series 2, Matrix®
• Design Characteristics, Customer Options . . . . . . . 333
• Insert Availability and Identification,
Alternate Positioning . . . . . . . . . . . . . . . 334
• Insert Arrangement Drawings . . . . . . . . . . 335, 336
• Class Descriptions, Performance Specifications . . . . . 337
• How to Order (Military and Commercial) . . . . . . . . 338
Shell Styles:
• Wall Mounting Receptacle with Narrow Flange,
Wall Mounting Receptacle with Wide Flange . . . . . . 339
• Cable Connecting Receptacle,
Jam Nut Receptacle. . . . . . . . . . . . . . . . 340
• Straight Plug,
Straight Plug with RFI Grounding Fingers . . . . . . . 341
Contacts and Tools:
• Contact Information, Sealing Plugs, Crimping and
Insertion/Removal Tools . . . . . . . . . . . . . . 342
• Assembly Instructions . . . . . . . . . . . . . 343, 344
Additional MIL-DTL-26482 Connectors
• Brief Description of Commercial/Military MIL-DTL-26482,
Series 1 . . . . . . . . . . . . . . . . . . . . 345
(Covered in-depth in Amphenol Industrial Catalog 12-070)
MIL-DTL-26482 Series 2, Matrix® Typical Markets:
• Military & Commercial Aviation
- Cockpit, Landing Gear, Aircraft Frame
• Military Aircraft Carriers
• Instrumentation/Process Control/Test Equipment
• C4ISR
Amphenol
Aerospace
333
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Matrix
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Class L Back-
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Options
Others
Amphenol Aerospace offers the Matrix® Product line of
MIL-DTL-26482*, Series 2 connectors.
This series provides a bayonet coupling connector with crimp
rear insertable, rear releasable contacts.
DESIGN CHARACTERISTICS
• Medium size, environmentally resistant connector
• Recommended operating voltage to 1,000 VAC (RMS)
at sea level
• Quick positive coupling assured by 3 point bayonet
coupling system
• Visual conrmation of complete coupling
• Eliminates mismating by the use of ve key/keyway design
• Insertion and removal of contacts from the rear of the
con nector assures no damage to the front that might affect
the sealing characteristics
• Utilizes same standard qualied rear-release type plastic
tool for contact insertion and removal
• Contacts are qualied to SAE AS39029** requirements
– BIN coded (three color bands), and are crimped with
standard crimp tools per MIL-DTL-22520
• Grommets are constructed of tear-resistant elastomer
and experience no degradation when exposed to a broad
range of fluids
• Sealing over a range of wire diameters is assured by a
tri ple webbed grommet at the rear of the connector
• Closed entry socket side of the insert is designed with a
lead-in chamfer and a hard face that will accept a pin
con tact bent within pre-established limits
• Elastomer interfacial seal on the pin side has raised
barri ers around each pin which displace into the socket
cham fer when mated, providing a positive moisture seal
CUSTOMER OPTIONS
• Shell styles within this family include: Wall mount with
either a narrow or a wide ange, jam nut single hole mount,
and cable connecting receptacles, along with standard
plugs or plugs with RFI grounding n gers, in shell
sizes 8 to 24
• MS and Proprietary versions available
• Accommodation of contact sizes 20, 16 and 12
• 34 insert arrangement patterns available, accommodating
from a minimum of 3 to a maximum of 55 circuits
• Alternate positioning available
• Various nishes are available (for information on
non-cad mium zinc alloy plating, consult Amphenol
Aerospace)
* MIL-DTL-26482 supersedes MIL-C-26482
** SAE AS39029 supersedes MIL-C-39029
MIL-DTL-26482, Series 2, Matrix®
Bayonet Coupling Connectors
With Crimp Rear Release Contacts
MS3470
wall mounting receptacle
with narrow ange
MS3472
wall mounting receptacle
with wide ange
MS3471
cable connecting recep-
tacle
MS3474
jam nut receptacle
MS3476
straight plug
MS3475
plug with RFI grounding
fingers
334
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Back-
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Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
AB
AB
AB
AB
MIL-DTL-26482, Series 2, Matrix®
Insert Availability and Identification
Alternate Rotations
INSERT ARRANGEMENTS
Insert
Arrangement
Service
Rating
Total
Contacts
Contact Size
12 16 20
8-33 I 3 3
8-98 I 3 3
10-6 I 6 6
12-3 II 3 3
12-8 I 8 8
12-10 I 10 10
14-4 I 4 4
14-5 II 5 5
14-9 I 9 4 5
14-12 I 12 4 8
14-15 I 15 1 14
14-18 I 18 18
14-19 I 19 19
16-8 II 8 8
16-23S I 23 1 22
16-26 I 26 26
18-8 I 8 8
18-11 II 11 11
18-30 I 30 1 29
18-32 I 32 32
20-16 II 16 16
20-24S I 24 24
20-39 I 39 2 37
20-41 I 41 41
22-12 I 12 12
22-19S I 19 19
22-21 II 21 21
22-32S I 32 32
22-41 I 41 14 27
22-55 I 55 55
22-95 I 32 6 26
24-19S II 19 19
24-31 I 31 31
24-61 I 61 61
Arrangements designated with an S are tooled in socket only.
Insert
Arrangement
Degrees
W X Y Z
8-33 90 – – –
8-98 – – – –
10-6 90 – – –
12-3 – – 180 –
12-8 90 112 203 292
12-10 60 155 270 295
14-4 45 – – –
14-5 40 92 184 273
14-9 15 90 180 270
14-12 43 90 – –
14-15 17 110 155 234
14-18 15 90 180 270
14-19 30 165 315 –
16-8 54 152 180 331
16-23 158 270 – –
16-26 60 – 275 338
18-8 180 – – –
18-11 62 119 241 340
18-30 180 193 285 350
18-32 85 138 222 265
20-16 238 318 333 347
20-24 70 145 215 290
20-39 63 144 252 333
20-41 45 126 225 –
22-12 – – – –
22-19 15 90 225 308
22-21 16 135 175 349
22-32 72 145 215 288
22-41 39 135 264 –
22-55 30 142 226 314
22-95 26 180 266 –
24-19 30 165 315 –
24-31 90 225 255 –
24-61 90 180 270 324
ALTERNATE ROTATIONS OF INSERT
To avoid cross-plugging problems in applications requiring the
use of more than one connector of the same size and
arrangement, alternate rotations are available as indicated in
the chart below.
As shown in the diagram, the front face of the pin insert is rotated
within the shell in a clockwise direction from the normal shell
key. The socket insert would be rotated counter-clockwise the
same number of degrees in respect to the normal shell key.
Position W Position X Position Y Position Z
View looking into front face of pin insert or rear of socket insert.
335
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5015
Crimp Rear
Release
Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
MIL-DTL-26482, Series 2, Matrix®
Insert Arrangements
Insert Arrangement 8-33 8-98 10-06 12-03 12-08 12-10 14-04 14-05
Service Rating I I I II I I I II
Number of Contacts 3 3 6 3 8 10 4 5
Contact Size 20 20 20 16 20 20 12 16
A
C
B
A
C
B
A
F
E
DC
B
AC
B
A
H
G
F
E
D
C
B
A
D
C
B
Insert Arrangement 14-09 14-12 14-15 14-18 14-19 16-08
Service Rating IIIIIII
Number of Contacts 5 4 8 4 14 1 18 19 8
Contact Size 20 12 20 16 20 16 20 20 16
A
E
DC
B
A
J
H
G
F
E
D
C
B
HA
B
J
G
MK
LCF
DE
A
H
G
F
E
D
C
B
M
L
K
JR
P
N
CONTACT LEGEND 20 16 12
A
D
C
B
H
GF E
M
L
K
JP
N
U
T
SR
A
D
C
B
H
GF
E
M
L
K
JTS
R
P
N
UV
A
D
C
B
H
G
F
E
A
HGF
E
D
C
B
P
N
M
L
K
J
Z
Y
X
W
V
U
T
S
R
A
Z
YXW
V
U
TS
R
P
N
M
L
K
JHG
F
E
D
C
B
ab
c
Insert Arrangement 16-23 16-26 18-08 18-11 18-30
Service Rating I I I II I
Number of Contacts 22 1 26 8 11 29 1
Contact Size 20 16 20 12 16 20 16
A
H
G
F
ED
C
B
A
L
K
J
H
G
F
E
D
C
B
A
ZYX
W
V
U
T
S
R
P
N
M
L
KJH
G
F
E
D
C
B
a
b
c
d
e
f
g
A
Z
Y
X
W
V
U
T
S
R
P
N
M
L
KJHG
F
E
D
C
B
a
b
c
d
e
f
g
h
j
Insert Arrangement 18-32 20-16 20-24 20-39 20-41
Service Rating I II I I I
Number of Contacts 32 16 24 37 2 41
Contact Size 20 16 20 20 16 20
A
M
L
K
J
H
G
F
E
D
C
B
S
RP
N
L
KW
MA
B
XN
YP
C
V
J
ZR
D
E
S
U
T
H
G
F
a
A
Z
Y
X
W
V
U
T
S
R
P
N
M
LKJ
H
G
F
E
D
C
B
a
r
pn
m
k
j
h
g
f
ed
c
b
i
q
A
Z
Y
X
W
V
U
T
S
R
P
NMLK
J
H
G
F
E
D
C
B
a
t
s
r
p
q
n
m
k
j
i
h
g
f
ed
c
b
NOTE: Connectors sold as mil-spec connectors will have mil-spec
markings on the insert (a “snail-trail” designating the numerical path).
Commercial versions will have insert markings as shown here.
Front face of pin insert or rear face of socket insert illustrated
336
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83723 III5015 26500
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Class L
Back-
Shells
Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
MIL-DTL-26482, Series 2, Matrix®
Insert Arrangements
Insert Arrangement 22-12 22-19 22-21 22-32
Service Rating I I II I
Number of Contacts 12 19 21 32
Contact Size 12 12 16 20
A
M
L
K
J
H
G
FE
D
C
B
A
V
U
T
S
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
X
W
V
UT
S
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
Z
Y
X
W
V
U
T
S
R
P
N
M
L
K
J
H
G
F
E
D
C
B
a
j
h
g
fe
d
c
b
A
Z
Y
X
W
V
U
T
S
R
P
NMLK
J
H
G
F
E
D
C
B
a
t
s
r
q
p
n
m
k
j
i
h
g
f
e
d
c
b
A
Z
Y
X
W
V
U
T
S
R
P
N
M
L
KJH
G
F
E
D
C
B
a
x
wv
u
t
s
r
q
p
n
m
y
k
j
i
h
g
fe
d
c
b
z
HH
GG
FF
EE
DD
CC
BB
AA
Insert Arrangement 22-41 22-55 22-95 24-19
Service Rating I I I II
Number of Contacts 27 14 55 26 6 19
Contact Size 20 16 20 20 12 12
A
Z
Y
X
W
V
U
T
S
R
P
N
MLK
J
H
G
F
E
D
C
B
a
i
h
g
f
edc
b
A
VU
T S
R
PN
M
L
K
J
HGF
E
D
C
B
A
X
W
V
U
T
S
R
Q
P
Y
N
M
L
K
J
H
GF
E
D
C
B
Z
a
g
f
e
d
c
b
A
Z
Y
X
W
V
U
T
S
R
PNML
K
J
H
G
F
E
D
C
B
a
z
y
x
w
v
u
t
s
r
p
nm
q
kj
i
h
g
f
e
d
c
b
AA
PP
NN
MM
LL
KK
JJ
HH
GG
FF
EE
DD
CC BB
Insert Arrangement 24-31 24-61
Service Rating I I
Number of Contacts 31 61
Contact Size 16 20
CONTACT LEGEND 20 16 12
Front face of pin insert or rear face of socket insert illustrated
NOTE: Connectors sold as mil-spec connectors will have mil-spec
markings on the insert (a “snail-trail” designating the numerical path).
Commercial versions will have insert markings as shown here.
337
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5015
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Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
CLASS DESCRIPTIONS
Military
MIL-DTL-26482, Series 2
Amphenol/Matrix
Commercial MB1
Series
Description
Class L Class R Aluminum shell, electroless nickel finish, fluid resistant
Class E –Inactive, superceded by Class L*
Class R –Inactive, superceded by Class L*
Class A Class A Aluminum shell, black non-conductive anodized nish, uid resistant
–Class G Stainless steel shell, passivated, fluid resistant
Class W Class W Aluminum shell, olive drab cadmium plated, corrosion/fluid resistant
* Ref. MIL-DTL-26482
PERFORMANCE SPECIFICATIONS
SERVICE RATINGS**
Service
Rating
Recommended
Operating AC Voltage
at Sea Level
Test Voltage AC (RMS), 60 cps
Sea Level 50,000 ft. 70,000 ft. 110,000 ft.
I 600 1,500 500 375 200
II 1,000 2,300 750 500 200
** Service Rating is comparable to MS rating A. Miniature connectors rated Service Rating I will provide a minimum ashover
voltage at sea level of 2,000 volts AC (RMS). Service Rating II is comparable to MS Service Rating D, and will provide a minimum
ashover voltage of 2,800 volts AC (RMS) at sea level.
Please note that the electrical data given is not an establishment of electrical safety factors. This is left entirely in the designer’s
hands, as he can best determine which peak voltage, switching surges, transients, etc. can be expected in a particular circuit.
OPERATING TEMPERATURE RANGE
–65°C (–85°F) to 200°C (392°F)
ENVIRONMENTAL SEAL
Wired, mated connectors with the specied accessory
attached will meet the altitude immersion test specied
in MIL-DTL-26482.
DURABILITY
Minimum of 500 mating cycles.
SHOCK AND VIBRATION REQUIREMENTS
When tested as follows, the connector shall sustain no
physical damage, or electrical discontinuity exceeding
one microsecond.
SHOCK:
Pulse of an approximate half sine wave of 300g magnitude
with duration of 3 milliseconds applied in three axes.
VIBRATION:
Sixteen hours of random vibration having a range of 50 to
2,000 Hz with a 41.7G peak level.
MIL-DTL-26482, Series 2, Matrix®
Class Descriptions, Performance Specifications
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HIGH
SPEED
Matrix 2
83723 III5015 26500
Pyle
22992
Class L
Back-
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Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
MIL-DTL-26482, Series 2, Matrix®
How to Order
Step 1. Military Connector Type
1. 2. 3. 4. 5. 6. 7.
MIL-DTL-26482,
Series 2
Connector
Type
Connector
Style
Service
Class
Shell Size/Insert
Arrangement
Contact
Type
Alternate
Rotation of Insert
Modification
Number
MILITARY MS 3470 W 12-10 P W NA
COMMERCIAL MB1 0 W 12-10 P W (xxx)
MS Designates Military Standard
Step 2. Select a Connector Style
Designates
3470 Wall Mount Receptacle with Narrow Flange
3472 Wall Mount Receptacle with Wide Flange
3471 Cable Connecting Receptacle
3474 Jam Nut Receptacle
3476 Straight Plug
3475 Straight Plug with RFI Grounding Fingers
Step 3. Select a Service Class
Designates
LAluminum shell, electroless nickel finish, fluid
resistant insert
AAluminum shell, black anodized finish, non-
conductive fluid resistant insert
WAluminum shell, olive drab cadmium plated, fluid
resistant insert
Note: For stainless steel shell, passivated, order by Amphenol®/
Matrix® commercial Class G.
Class L inactivates classes E and R (Ref. MIL-DTL-26482)
Step 4. Select a Shell Size & Insert
Arrangement from chart on page 334.
First number represents Shell Size, second number is
the Insert Arrangement.
Step 5. Select a Contact Type
Designates
PPin Contacts
SSocket Contacts
ALess Pins
BLess Sockets
Step 6. Select an Alternate Rotation of Insert
“W”, “X”, “Y”, “Z” designate that insert is rotated in its shell
from normal position. No letter required for normal
(no rotation) position. See page 334 for description of
alternate positions.
For ordering information on accessories, such as
protection caps and backshell hardware, contact
Amphenol Aerospace.
Use A & B only when other than a full complement of power
contacts is to be installed.
Step 1. Commercial Connector Type
MB1 Designates Amphenol®/Matrix® Bayonet
Coupling Connector
Step 2. Select a Connector Style
Designates
0Wall Mount Receptacle with Narrow Flange
1Wall Mount Receptacle with Wide Flange
3Cable Connecting Receptacle
4Jam Nut Receptacle
6Straight Plug
8Straight Plug with RFI Grounding Fingers
Step 3. Select a Service Class
Designates
AAluminum shell, black anodized finish, non-
conductive, fluid resistant insert
BBlack zinc conductive plating. Must also add
modification number (A15) in step 7
CGreen zinc cobalt plating. Must also add
modification number (981) in step 7
RAluminum shell, electroless nickel finish, fluid
resistant insert
GStainless steel shell, passivated, fluid
resistant insert
WAluminum shell, cadmium plated, olive drab
finish, fluid resistant insert
DZ Black Zinc Nickel
DT Durmalon
Step 4. Select a Shell Size & Insert
Arrangement from chart on page 334.
First number represents Shell Size, second number is
the Insert Arrangement.
Step 5. Select a Contact Type
Designates
PPin Contacts
SSocket Contacts
Step 6. Select an Alternate Rotation of Insert
“W”, “X”, “Y”, “Z” designate that insert is rotated in its shell
from normal position. No letter required for normal
(no rotation) position. See page 334 for description of
alternate positions.
Step 7. Modication Number
Consult Amphenol Aerospace for information.
For strain reliefs use the following codes:
(189) E-nut M85049/31 configuration
(190) Straight strain relief M85049/52 configuration
(191) 90° strain relief M85049/51 configuration
(A15) Used with finish class B to designate conductive
black zinc plating.
(981) Used with finish class C to designate
green zinc cobalt plating.
339
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HIgH
SPEED
Matrix 2 83723 III
Matrix|Pyle
5015
Crimp Rear
Release
Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max. E
F
±.016
H
Accessory Thread
Class 2A
T Dia.
±.005
8 .828 .594 .471 .305 .462/.431 .062 .5000-20 UNF .120
10 .954 .719 .588 .405 .462/.431 .062 .6250-24 UNEF .120
12 1.047 .812 .748 .531 .462/.431 .062 .7500-20 UNEF .120
14 1.141 .906 .873 .665 .462/.431 .062 .8750-20 UNEF .120
16 1.234 .969 .998 .790 .462/.431 .062 1.0000-20 UNEF .120
18 1.328 1.062 1.123 .869 .462/.431 .062 1.0625-18 UNEF .120
20 1.453 1.156 1.248 .994 .587/.556 .094 1.1875-18 UNEF .120
22 1.578 1.250 1.373 1.119 .587/.556 .094 1.3125-18 UNEF .120
24 1.703 1.375 1.498 1.244 .620/.589 .094 1.4375-18 UNEF .147
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max. E
F
±.016
H
Accessory Thread
Class 2A
8 1.065 .734 .471 .305 .493/.462 .062 .5000-20 UNF
10 1.141 .812 .588 .405 .493/.462 .062 .6250-24 UNEF
12 1.266 .938 .748 .531 .493/.462 .062 .7500-20 UNEF
14 1.360 1.031 .873 .665 .493/.462 .062 .8750-20 UNEF
16 1.453 1.125 .998 .790 .493/.462 .062 1.0000-20 UNEF
18 1.532 1.203 1.123 .869 .493/.462 .062 1.0625-18 UNEF
20 1.688 1.297 1.248 .994 .587/.556 .094 1.1875-18 UNEF
22 1.766 1.375 1.373 1.119 .587/.556 .094 1.3125-18 UNEF
24 1.891 1.500 1.498 1.244 .620/.589 .094 1.4375-18 UNEF
MS3470 (MB10) – MIL-DTL-26482, Series 2
Wall Mounting Receptacle (with Narrow Flange)
MS3472 (MB11) – MIL-DTL-26482, Series 2
Wall Mounting Receptacle (with Wide Flange)
All dimensions for reference only.
All dimensions for reference only.
Military MS 3470 X X-X X X NA
Commercial MB1 0 X X-X X X (XXX)
Connector
Type
Shell
Style
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
MS3472
MB11
A Max. Ty p.
B Ty p.
Master
Keyway
T Dia. Mounting
Holes Ty p. 4-Places
C Dia.
1.405 Max.
Shell 8 Thru 18
1.465 Max.
Shell 20, 22, & 24
3 Teeth
Equally Spaced
120 Apart
H Accessory
Thread
D Dia. Max.
Grommet
EF
.290 Min. Full Thread
.190
.130 Grommet
Extension
Blue
Color
Bands
°
C Dia.
1.405 Max.
Shell 8 Thru 18
1.465 Max.
Shell 20, 22, & 24
3 Teeth
Equally Spaced
120 Apart
H Accessory
Thread
D Dia. Max.
Grommet
EF
.290 Min. Full Thread
.190
.130 Grommet
Extension
Blue Color
Bands
°
A Max. Ty p.
B Ty p.
Master
Keyway
.150 Dia. Mounting
Holes Ty p. 4-Places
MS3470
MB10
Military MS 3472 X X-X X X NA
Commercial MB1 1 X X-X X X (XXX)
Connector
Type
Shell
Style
Service
Class
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
340
Amphenol
Aerospace
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
26482
Dualok
III
SJT
38999
PCB
HD
EMI Filter
Transient
I
II
Accessories
Herm/Seal
Aquacon
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2
83723 III5015 26500
Pyle
22992
Class L
Back-
Shells
Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
MS3471 (MB13) – MIL-DTL-26482, Series 2
Cable Connecting Receptacle
MS3474 (MB14) – MIL-DTL-26482, Series 2
Jam Nut Receptacle
All dimensions for reference only.
MS3471
MB13
MS3474
MB14
Shell
Size
A
Max.
B Dia.
±.020
C Dia.
±.003
D Dia.
Max. E
F
±.016
H
Accessory Thread
Class 2A
8 .828 .938 .471 .305 .462/.431 .062 .5000-20 UNF
10 .954 1.062 .588 .405 .462/.431 .062 .6250-24 UNEF
12 1.047 1.156 .748 .531 .462/.431 .062 .7500-20 UNEF
14 1.141 1.250 .873 .665 .462/.431 .062 .8750-20 UNEF
16 1.234 1.344 .998 .790 .462/.431 .062 1.0000-20 UNEF
18 1.328 1.438 1.123 .869 .462/.431 .062 1.0625-18 UNEF
20 1.453 1.562 1.248 .994 .587/.556 .094 1.1875-18 UNEF
22 1.578 1.688 1.373 1.119 .587/.556 .094 1.3125-18 UNEF
24 1.703 1.812 1.498 1.244 .620/.589 .094 1.4375-18 UNEF
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max. E F
H
Accessory Thread
Class 2A
J
Mounting Thread
Class 2A
K
Max.
8 .954 .525 .471 .305 .707/.658 .113/.086 .5000-20 UNF .5625-24 UNEF .767
10 1.078 .650 .588 .405 .707/.658 .113/.086 .6250-24 UNF .6875-24 UNEF .892
12 1.266 .813 .748 .531 .707/.658 .113/.086 .7500-20 UNEF .8750-20 UNEF 1.079
14 1.391 .937 .873 .665 .707/.658 .113/.086 .8750-20 UNEF 1.0000-20 UNEF 1.205
16 1.516 1.061 .998 .790 .707/.658 .113/.086 1.0000-20 UNEF 1.1250-18 UNEF 1.329
18 1.641 1.186 1.123 .869 .707/.658 .113/.086 1.0625-18 UNEF 1.2500-18 UNEF 1.455
20 1.828 1.311 1.248 .994 .772/.721 .148/.096 1.1875-18 UNEF 1.3750-18 UNEF 1.579
22 1.954 1.436 1.373 1.119 .772/.721 .148/.096 1.3125-18 UNEF 1.5000-18 UNEF 1.705
24 2.078 1.561 1.498 1.244 .772/.721 .148/.096 1.4375-18 UNEF 1.6250-18 UNEF 1.829
All dimensions for reference only.
A Max. Ty p.
Master Keyway
B
K Max.
Ty p.
.290 Min. Full Thread
.190
.130
Grommet
Extension
C
Dia.
1.405 Max
Shell 8 Thru 18
1.465 Max.
Shell 20, 22, & 24
EF
H Accessory
Thread
D Dia. Max.
Grommet
Blue Color Band
Blue
Color
Band
J Mounting Thread
Lockwire Hole
3-Places Equally Spaced
3 Teeth
Equally Spaced
120 Apart
°
A Max. Ty p.
Master
Keyway
B Dia. Blue Color
Bands
C
Dia.
H Accessory Thread
.190
.130 Grommet
Extension
D Dia. Max
Grommet
1.405 Max.
Shell 8 Thru 18
1.465 Max.
Shell 20, 22, &24
EF
.290 Min.
Full Thread
3 Teeth
Equally Spaced
120 Apart
°
Military MS 3471 X X-X X X NA
Commercial MB1 3 X X-X X X (XXX)
Connector
Type
Shell
Style
Service
Class
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
Military MS 3474 X X-X X X NA
Commercial MB1 4 X X-X X X (XXX)
Connector
Type
Shell
Style
Service
Class
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
341
Amphenol
Aerospace
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
26482
II
Dualok
III
SJT
38999
I
PCB
Accessories
Aquacon
HD
EMI Filter
Transient
Herm/Seal
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2 83723 III
Matrix|Pyle
5015
Crimp Rear
Release
Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
Shell
Size
A Dia.
Max.
B Dia.
Max.
H
Accessory Thread
Class 2A
8 .782 .305 .5000-20 UNF
10 .926 .405 .6250-24 UNEF
12 1.043 .531 .7500-20 UNEF
14 1.183 .665 .8750-20 UNEF
16 1.305 .790 1.0000-20 UNEF
18 1.391 .869 1.0625-18 UNEF
20 1.531 .994 1.1875-18 UNEF
22 1.656 1.119 1.3125-18 UNEF
24 1.777 1.244 1.4375-18 UNEF
MS3476
MB16
MS3476 (MB16) – MIL-DTL-26482, Series 2
Straight Plug
MS3475 (MB18) – MIL-DTL-26482, Series 2
Straight Plug (With RFI Grounding Fingers)
MS3475
MB18
Shell
Size
A Dia.
Max.
B Dia.
Max.
H
Accessory Thread
Class 2A
8 .782 .305 .5000-20 UNF
10 .926 .405 .6250-24 UNEF
12 1.043 .531 .7500-20 UNEF
14 1.183 .665 .8750-20 UNEF
16 1.305 .790 1.0000-20 UNEF
18 1.391 .869 1.0625-18 UNEF
20 1.531 .994 1.1875-18 UNEF
22 1.656 1.119 1.3125-18 UNEF
24 1.777 1.244 1.4375-18 UNEF
All dimensions for reference only.
All dimensions for reference only.
A Dia.
Max.
Over
Knurl
Master
Keyway
.190
.130
Grommet
Extension
B Dia. Max
Grommet
Blue Color
Band
.290 Min. Full Thread
H Accessory Thread
3 Teeth
Equally Spaced
120 Apart
°
1.420 Max.
.320 Min.
Fully Coupled
Indicators
A Dia.
Max.
Over
Knurl
1.420 Max.
.320 Min.
Fully Coupled
Indicators
.190
.130 Grommet
Extension
B Dia. Max
Grommet
Blue Color
Band
RFI
Fingers
Master
Keyway
.290 Min. Full Thread
H Accessory Thread
3 Teeth
Equally Spaced
120 Apart
°
Military MS 3476 X X-X X X NA
Commercial MB1 6 X X-X X X (XXX)
Connector
Type
Shell
Style
Service
Class
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
Military MS 3475 X X-X X X NA
Commercial MB1 8 X X-X X X (XXX)
Connector
Type
Shell
Style
Service
Class
Shell Size
& Insert
Arrg
Contact
Type
Alternate
Rotation
of Insert
Modication
Number
*To complete, see how to order page 338.
PART #
342
Amphenol
Aerospace
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
26482
Dualok
III
SJT
38999
PCB
HD
EMI Filter
Transient
I
II
Accessories
Herm/Seal
Aquacon
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2
83723 III5015 26500
Pyle
22992
Class L
Back-
Shells
Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
MIL-DTL-26482, SERIES 2
CRIMP CONTACTS
Contact
Size
Wire Range Socket Contacts Pin Contacts
AWG mm2
Military
Part Number
Amphenol/Matrix
Part Number
Military
Part Number
Amphenol/Matrix
Part Number
20 24-20 0.2-0.6 M39029/5-115 M5100-001-0020L M39029/4-110 M5000-054-0020L
16 20-16 0.5-1.4 M39029/5-116 M5100-001-0016L M39029/4-111 M5000-054-0016L
12 14-12 2-3 M39029/5-118 M5100-001-0012L M39029/4-113 M5000-054-0012L
CONTACT CURRENT RATING AND RETENTION
Contact
Size*
DC Test
Amperage
Contact Retention
Axial Load
lb. N
20 7.5 20 89.0
16 13.0 25 111.2
12 23.0 30 133.4
* Organize individual circuits to maintain heat rise within
operating temperature requirements.
SEALING PLUGS
Contact
Size
Sealing Plugs
Military
Part Number
Amphenol/Matrix
Part Number
20 MS27488-20-2 10-405996-202
16 MS27488-16-2 10-405996-162
12 MS27488-12-2 10-405996-122
CRIMPING TOOLS
Contact
Size
Wire Range Finished Wire Dia. Range
Crimping Tool
Part Number
Turret or Positioner
Part NumberAWG mm2Inch mm
20 24-20 0.2-0.6 .040-.083 1.02-2.11 M22520/1-01 or
M22520/2-01
M22520/1-02 or
M22520/2-02
16 20-16 0.5-1.4 .053-.103 1.34-2.62 M22520/1-01 M22520/1-02
12 14-12 2-3 .097-.158 2.46-4.01 M22520/1-01 M22520/1-02
MIL-DTL-26482, Series 2, Matrix®
Contact Information, Sealing Plugs,
Crimping and Insertion/Removal Tools
BACKSHELLS
The section of this catalog called “Backshells” covers the backshells for MIL-DTL-26482 that are provided through Amphenol
PCD. Please refer to this section for:
• Backshells for Connector Family “J”, which includes MIL-DTL-26482 (Series II), MIL-DTL-5015 (MS3400), MIL-DTL-83723
(Series I & III).
INSERTION/REMOVAL TOOLS
Contact
Size Color Code
Military
Part Number
Amphenol/Matrix
Part Number
20 Red/White M81969/14-11 10-538988-201
16 Blue/White M81969/14-03 10-538988-016
12 Yellow/White M81969/14-04 10-538988-012
Note: Each connector is furnished with contacts. One spare for
inserts requiring 1 to 26 of each contact, two spares for inserts with
more than 26 contacts, and a minimum of one sealing plug up to 15%
of the number of contacts.
343
Amphenol
Aerospace
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26482
II
Dualok
III
SJT
38999
I
PCB
Accessories
Aquacon
HD
EMI Filter
Transient
Herm/Seal
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2 83723 III
Matrix|Pyle
5015
Crimp Rear
Release
Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
MS3476 (MB16) – MIL-DTL-26482, Series 2
Assembly Instructions
Contact Insertion
1. First remove hardware from the plug
and receptacle and slide the hard-
ware over wires in proper sequence.
2. Use proper plastic or metal insertion
tool for corresponding contact. (Con-
sult tool table on preceding page).
Slide correct tool (with plastic tool use
colored end) over wire insulation and
slide forward until tool bottoms against
rear contact shoulder.
3. Next align the tool and contact up
to the properly identified cavity at
rear of connector plug. Use rm,
even pressure; do not use exces-
sive pressure. It is recommended
to start at the center cavity. Contact
must be aligned with grommet hole
and not inserted at an angle. Push
forward until contact is felt to snap
into position within insert.
Continued on next page.
Note: All plastic tools are double-ended.
The colored side is the insertion tool and
the white side is the removal tool. Metal tool with contact.
Plastic tool with contact in proper position.
Wire Stripping
Table 1
Stripping Dimensions
Contact
Size
Wire Dimension (inches)**
Min. Max.
12 .040 .083
16 .053 .103
20 .097 .153
** Min. diameters to ensure moisture proof
assembly; max. diameters to permit use of metal
removal tools.
1. Strip wire to required length. (See Figure at right). When
using hot wire stripping do not wipe melted insulation
material on wire strands; with mechanical strippers do not
cut or nick strands.
2. See Table 1 for proper nished outside wire dimensions.
3. Twist strands together to form a rm bundle.
4. Insert stripped wire into contact applying slight pressure until wire insulation
butts against wire well. Check inspection hole to see that wire strands are
visible. If there are strayed wire strands, entire wire end should be re-twisted.
When wire is stripped and properly installed into contact, the next step is to crimp
the wire inside the contact by using the proper crimping tool.
Crimping
See table on preceding page for
recommended M22520 series crimping tools,
turret head or positioner selection settings
according to contact size, part number and
wire gauge size.
VISUAL INSPECTION
HOLE
1. Insert stripped wire into contact crimp pot.
Wire must be visible through inspection
hole.
2. Using correct crimp tool and locator, cycle
the tool once to be sure the indentors
are open, insert contact and wire into
locator. Squeeze tool handles rmly and
completely to insure a proper crimp. The
tool will not release unless the crimp in-
dentors in the tool head have been fully
actuated.
3. Release crimped contact and wire from
tool. Be certain the wire is visible through
inspection hole in contact.
A
Wire Size A
20 .188 (4.77)
16 .188 (4.77)
12 .188 (4.77)
Example M22520 Series Crimping Tool for
size 20, 16 or 12 contacts, and has a
positioner that can be dialed for each contact
size.
344
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26482
Dualok
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SJT
38999
PCB
HD
EMI Filter
Transient
I
II
Accessories
Herm/Seal
Aquacon
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2
83723 III5015 26500
Pyle
22992
Class L
Back-
Shells
Options
Others Crimp Rear
Release
Matrix
Matrix|Pyle
Contact Insertion, cont.
4. Remove tool and pull back lightly
on wire, making sure contact stays
properly seated and isn’t dragged
back with the tool. Repeat operation
with remainder of contacts to be
inserted, beginning with the center
cavity and working outward in
alternating rows.
5. After all contacts are inserted,
ll any empty cavities with
wire sealing plugs. (Refer to
sealing plug charts for Series
III on page 18, for Series I, II,
and SJT on page 19.
6. Reassemble plug or receptacle hardware
- slide forward and tighten using connec-
tor pliers. Connector holding tools are
recommended while tightening back
accessories. When using strain relief,
center wires at bar clamp. Slide clamp
grommet into position and tighten clamp
bar screws. When tightening screws,
pressure should be applied in the same
direction that clamp is threaded to rear
threads of connector. When not using
clamp grommet, build up wire bundle
with vinyl tape so clamp bar will
maintain pressure on wires.
CAUTION when inserting or removing contacts, do not
spread or rotate tool tips.
Contact Removal
1. Remove hardware from plug or
receptacle and slide hardware back
along wire bundle.
2. Use proper plastic or metal
removal tool for corresponding
contact. (Consult tool table on
page 277). Slide correct size tool
over wire insulation.
3. Insert plastic or metal removal tool into
contact cavity until tool tips enter rear
grommet and come to a positive stop.
Hold tool tip firmly against positive stop
on contact shoulder. Grip wire and
simultaneously remove tool and contact.
(On occasion, it may be necessary to
remove tool, rotate 90° and reinsert.)
Use white end of plastic tool for
removal of contacts.
Removal of contacts with metal tool.
MS3476 (MB16) – MIL-DTL-26482, Series 2
Assembly Instructions
345
Amphenol
Aerospace
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26482
II
Dualok
III
SJT
38999
I
PCB
Accessories
Aquacon
HD
EMI Filter
Transient
Herm/Seal
Fiber
Optics
Contacts
Connectors
Cables
HIgH
SPEED
Matrix 2 83723 III
Matrix|Pyle
5015
Crimp Rear
Release
Matrix
26500
Pyle 22992
Class L Back-
Shells
Options
Others
MIL-DTL-26482, Series 1
Connectors
There are several additional connector
types within the Amphenol®
MIL-DTL-26482 fam ily. MIL-Spec and
commercial versions are available with
varying design characteris tics and
customer options to meet cost
considerations and to provide users with
the most design exibility possible.
MIL-DTL-26482, Series 1 Circular connectors are shown
in detail in Amphenol Industrial Operations’ catalog
12-070, which can be supplied upon request or visit www.
amphenol-industrial.com.
Briey the MIL-DTL-26482 Series 1 circulars are
described as follows:
PT, SP, MS/PT
Commercial/MIL-DTL-26482, Series 1
These are bayonet type with solder contacts. Both the
insert and main joint gasket are molded from resilient
neoprene. This provides excellent moisture sealing at the
gasket and superior electrical isolation of the contact in
the inserts.
Socket contacts are closed entry design. Printed circuit
board contacts are also available in this series.
The SP is a modication of the PT providing special shells
with a wide mounting ange for back panel mounting. The
SP also has a durable non-conductive hard anodic
“Alumi lite” coating which provides abrasion and corrosion
protec tion.
There are 8 shell styles in the PT, SP and MS/PT series,
and shell sizes are 6-24. The PT solder is UL recognized.
Her metics are also available.
PT-SE, SP-SE, MS/PT-SE
Commercial/MIL-DTL-26482, Series 1
These are a derivative of the PT line, bayonet type.
How ever, they incorporate crimp contacts that are rear
insert able, front releasable. An MS approved spring tower
retention system holds the contacts in place.
PT-CE, SP-CE
Commercial crimp type
Another derivative of the PT line, bayonet type. These also
have crimp contacts that are rear insertable, front
releasable, but the contacts are held in place by a nylon
wafer retention system. The voidless one-piece insert and
grom met assembly provide continuous dielectric
separation between contacts.
PC, PC-SE, PC-CE
Commercial solder and crimp type
The PC series within the Amphenol® miniature circular
family is threaded coupling, rather than bayonet coupling.
The threads are double-stubbed so they can not be
cross threaded.
The PC is offered with solder contacts. The PC-SE has
crimp contacts in a spring tower retention system, while
the PC-CE has crimp contacts in a nylon wafer retention
system. Hermetics are available
All miniature circular are intermateable and
intermountable with each other except for the threaded
coupling PC Series.
For further information ask for catalog 12-070. Consult
Amphe nol Industrial Operations, Sidney, NY for any
assistance on these products or for any specific
application needs. See catalog 12-070 online at www.
amphenol-industrial.com
Additional MIL-DTL-26482 Circular
Connectors from Amphenol
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Amphenol:
MB10R20-16P MS3476W20-41S-USB4 MS3470A14-4A MS3476L12-3S-U MS3476L12-3SY-LC MS3475W20-16P-
LC MS3472W18-32S-LC MS3474W18-32SX MS3474W12-3S-LC MS3474W18-32P-LC MS3474W18-32SW-LC
MB16R10-6S MB16G1405P MB16W1832S MS3476L18-8P-UWSB4 MB10B14-19SW-A15 MS3475L14-5SW-US
MS3476L14-5AW MB16L16-26S-LC MS3476W18-32SY-CGE21MSA MB16R18-32S MS3476W18-32S-USSB4
MB10B833S-A15-LC MB16B20-41P-A15-LC MB16G8-33S MB16R16-26P-985 MB16R16-26S MS3476L16-26A-
CGMSA MB16W1832SW MS3476L16-26P-UHST3 MB16W18-32S-CG MB16B833P-A15-LC MS3476L16-8S-
USSB4 MS3476L16-26P-U MS3470W12-3S-USHBSB2 MS3476W16-26S-CG MS3476L20-16P-CGMSA MB10B14-
19S-A15 MB10R18-32S MB16B20-39P-A15-LC MS3476W16-8SW-UWRHSB2 MB16R16-26P MS3474W14-5P-
UBSB2 MS3474W14-5P-USBSB2 MS3474W14-5P-USSB3 MS3476W14-5P-USBSB2 MS3474A14-5P MS3476L18-
32P-U MS3474W14-5PW-LC MS3474L14-5A MS3474W14-5P-CGCA12 MS3476W22-55P-USSB5 MS3476L14-5P-
CGMSA MS3475W12-3S-UWBSB2 MS3474W16-26P-USBSB3 MS3476W20-16A MS3476L20-41B MS3471W14-
5PW MS3476L16-8BW MS3474W14-5PW MB16B14-19SA15 MB14W18-8P MB16W16-8S-CG MS3471W12-10S-
CGMSS1 MS3476W16-26S-USSB3 MS3470A14-5P-LC MS3475L12-3S-U MS3476L12-3S-CGMSR MS3476L22-
41P-USSB5 MS3476W12-3SW MS3476L12-3SX-LC MB16B14-19SA15-UWHST3 MS3475L16-26PZ MS3476W16-
23SW MS3475L16-23S MS3475L16-8SW MS3475L12-3S-LC MS3475L12-3S-CGMSS2 MS3476W16-8S-US
MS3474L22-41S-USSB5 MS3476W22-41S-USSB5 MS3475W18-32B MS3471L12-3SY MS3476W12-10A
MS3476L20-16P-USB4 MS3476W12-3S-US MS3476L22-41S-USSB5 MB16R2016P190 MB18W12-3S
MS3476W16-26P-U MS3474W14-12SX-LC MS3474W14-5P-LC MS3474W14-5PX MS3474W14-5PX-LC
MS3475L16-26SX MS3476L22-55S-UWSB5 MS3472W12-3S MS3474L12-3SY MS3471L18-32SX MS3476W20-
16AW