This catalog covers the Amphenol MIL-C-26482, Series 2 Connectors. These connectors are bayonet coupling type, and they
feature crimp contacts that are rear insertable and rear releasable. They can be ordered through Amphenol, by military or
equivalent proprietary part numbers.
The connectors covered in this catalog broaden the miniature cylindrical family offered by Amphenol, so that now
users have the broadest range of product available to them.
Should more information be required concerning the connectors covered in this publication, or if special application needs
arise, please contact factory :
AMPHENOL 1
Page Contents
Introduction 1
General description, features & benefits
Class descriptions, performance specifications
Insert Arrangement Chart
Insert Alternate Positions
Insert Arrangement Patterns
Shell Styles, Dimensional Data :
Wall Mounting Receptacle, Narrow Flange 8
Wall Mounting Receptacle Wide Flange 9
Cable Connecting Receptacle 10
Jam Nut Receptacle 11
Straight Plug,
Straight Plug With RFI Grounding Fingers 12
Contact Information, Sealing Plugs,
Crimping & Insertion/Removal Tools 13
Ordering Information 14
5-7
4
3
2
Series II
Introduction
Amphenol Miniature Cylindrical
MIL-C-26482, Series 2 Connectors
AMPHENOL 2
Amphenol broadens their Miniature Cylindrical Family of
Connectors with the addition of the product line of
MIL-C-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 1000 VAC (RMS)
at sea level
Quick positive coupling assured by 3 point bayonet coupling
system
Visual confirmation of complete coupling
Eliminates mismating by the use of five key/keyway design
Insertion and removal of contacts from the rear of the connectors
assures no damage to the front that might affect the sealing
characteristics
Utilizes same standard qualified rear release type
plastic tool for contact insertion and removal
Contacts are qualified to MIL-C-39029 requirements - BIN
coded (three colour bands), and are crimped with standard crimp
tools per MIL-C-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 triple
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 contact bent within
pre-established limits
Elastomer interfacial seal on the pin side has raised barriers
around each pin which displace into the socket chamfer when
mated, providing a positive moisture seal
CUSTOMER OPTIONS
Shell styles within this family include:
Wall mount with either a narrow or a wide flange, jam nut single
hole mount, and cable connecting receptacles, along with standard
plugs or plugs with RFI grounding fingers, 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 finishes are available (for information on non-cadmium
zinc cobalt plating, consult factory)
MS3470
wall mounting receptacle
with narrow flange
MS3472
wall mounting receptacle
with wide flange
MS3471
cable connecting receptacle
MS3474
jam nut receptacle
MS3476
straight plug
MS3475
plug with RFI grounding
fingers
Series II
CLASS DESCRIPTIONS
PERFORMANCE SPECIFICATIONS
AMPHENOL 3
** Service rating is comparable to MS rating A. Miniature connectors rated Service Rating I will provide a
minimum flashover voltage at sea level of 2000 volts AC (RMS). Service rating II is comparable to MS Service
Rating D, and will provide a minimum flashover 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
ENVIRONMENTAL SEAL
Wired, mated connectors with the specified accessory
attached will meet the altitude immersion test specified in
MIL-C-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
VIBRATION
0 0 0 0
-65 C (-85 F) to 200 C (392 F)
Pulse of an approximate half sine wave of 300g magnitude
with duration of 3 milliseconds applied in 3 axes
Sixteen hours of random vibration having a range of 50 to
2,000 Hz with a 41.7G peak level
Amphenol Miniature Cylindrical
class descriptions, performance specifications
MIL-C- 26482, Series 2 Connectors
* Ref. MIL-C-26482
Military
MIL-C-26482, Series 2 Description
Class L
Class E
Class R
Class A
-
Class W
Aluminum shell, electroless nickel finish, fluid resistant
Inactive, superceded by Class L*
Inactive, superceded by Class L*
Aluminum shell, black non-conductive anodized finish, fluid resistant
Proprietary class G - Stainless steel shell, passivated, fluid resistant
Aluminum shell, olive drab cadmium plated, corrosion/fluid resistant
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
Series II
Miniature Cylindrical MIL-C-26482, Series 2
insert arrangements, insert alternate positioning
AMPHENOL 4
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 I 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
16-23 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
20-24 I 24 24
20-39 I 39 2 37
20-41 I 41 41
22-12 I 12 12
22-19 I 19 19
22-21 II 21 21
22-32 I 32 32
22-41 I 41 14 27
22-55 I 55 55
22-95 I 32 6 26
24-19 II 19 19
24-31 I 31 31
24-61 I 61 61
INSERT ALTERNATE POSITIONING
To avoid cross-plugging problems in applications requiring the use of
more than one connector of the same size and arrangement, alter-
nate 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.
A
B
+
A
B
A
B
A
B
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 18 193 285 350
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
-
-
- -
-
- -
-
--
-
- -
- - -
-
- -
---
- -
-
Series II
Miniature Cylindrical MIL-C-26482, Series 2
insert arrangements
front face of pin insert or rear face of socket insert illustrated
AMPHENOL 5
A
B
C
DA
B
C
D
E
A
B
C
D
E
F
G
J
HA
B
C
D
E
F
G
H
J
K
L
MN
P
AB
C
D
E
F
G
H
J
MK
Insert Arrangement 8-33 8-98 10-06 12-03 12-08 12-10
Service Rating I I I II I I
Number of Contacts 3 36 3 8 10
Contact Size 20 20 20 16 20 20
Insert Arrangement 14-04 14-05 14-09 14-12 14-15
Service Rating I II I I I
Number of Contacts 4 5 5 4 8 4 14 1
Contact Size 12 16 20 12 20 16 20 16
Insert Arrangement 14-18 14-19 16-08 16-23 16-26
Service Rating I I II I I
Number of Contacts 18 19 8 22 1 26
Contact Size 20 20 16 20 16 20
A
B
CA
B
C
A
B
C
D
E
FA
B
C
A
B
C
D
E
F
GAB
C
D
E
F
GJ
R
H
A
B
C
D
E
F
G
H
J
KLMN
R
S
TU
MAB
PC
D
E
LN
KUVR
S
T
J
HGF
A
B
C
D
H
E
F
G
PA
B
C
D
S
R
Y
N
X
L
Z
W
K
J
VU
HGF
E
T
M
AB
C
U
D
E
V
W
Z
Y
M
L
KXG
H
J
N
PR
ST
H
L
R
P
F
ab
g
20 16 12
*
*
* *
* *
*Available on request. Please contact factory.
Series II
Contact Legend
Symbol
Contact size
Miniature Cylindrical MIL-C-26482, Series 2
insert arrangements
front face of pin insert or rear face of socket insert illustrated
AMPHENOL 6
Insert Arrangement 18-08 18-11 18-30 18-32
Service Rating I II I I
Number of Contacts 8 11 29 1 32
Contact Size 12 16 20 16 20
Insert Arrangement 20-16 20-24 20-39 20-41
Number of Contacts 16 24 37 241
Contact Size 16 20 20 16 20
Insert Arrangement 22-12 22-19 22-21
Service Rating I I II
Number of Contacts 12 19 21
Contact Size 12 12 16
A
B
C
D
E
F
G
H
J
K
L
M
A
B
C
D
E
F
G
H
J
K
L
MN
P
R
S
T
U
V
A
B
C
D
E
F
G
H
J
K
L
MN
P
R
S
T
U
V
W
X
A
B
C
D
H
E
F
GA
B
C
D
E
F
G
H
L
J
K
AB
C
D
E
F
G
H
J
K
L
M
N
P
RS
T
U
V
W
X
Y
Z
AB
C
D
E
W
X
YF
G
Z
H
JK
L
M
N
P
R
STU
V
d
c
b
agf
e
e
d
c
b
a
j
h
f
i
Service Rating II I I I
A
B
C
L
M
N
D
P
R
K
J
S
H
G
F
E
A
B
C
D
P
R
S
Y
Z
N
M
L
X
W
K
JV
U
T
H
GFE
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
XY
Z
ABC
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
WXY
Z
a
a
b
c
d
e
f
g
h
i
j
k
m
r
n
p
q
a
b
c
d
e
f
g
h
i
j
km
n
p
q
r
s
T
20 16 12
* * *
* * *
* * *
*Available on request. Please contact factory.
Series II
Contact Legend
Symbol
Contact size
Miniature Cylindrical MIL-C-26482, Series 2
insert arrangements
front face of pin insert or rear face of socket insert illustrated
AMPHENOL 7
Insert Arrangement 22-32 22-41 22-55
Service Rating I I I
Number of Contacts 32 27 14 55
Contact Size 20 20 16 20
Insert Arrangement 22-95 24-19 24-31
Service Rating I II I
Number of Contacts 26 6 19 31
Contact Size 20 12 12 16
Insert Arrangement 24-61
Service Rating I
Number of Contacts 61
Contact Size 20
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
J
K
L
M
N P
R
S
T
UV
A
B
C
D
E
F
G
H
J
K
L
M
NPR
S
T
U
V
W
X
Y
Z
AB
C
D
E
F
G
H
J
K
LM
N
P
R
S
T
U
V
W
XY
Z
ABC
D
E
F
G
H
J
K
L
M
N
P
R
S
TUV
WX
Y
Z
AA
BBCC
DD
EE
FF
GG
A
BC
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
W
X
YZ
GG HH
FF JJ
EE MM
NN
PP KK
AA
BB
CC
DD
A
B
C
D
E
F
G
H
J
K
L
M
NP
Q
R
S
T
U
V
W
X
Y
Z
e
f
g
a
b
hc
d
J
a
b
c
d
e
f
g
h
i
jkm
n
p
q
r
st
a
b
c
d
e
f
g
h
i
j
k
mnpq
r
s
t
u
v
w
x
y
z
a
b
c
d
e
f
g
ha
b
c
d
e
f
g
c
v
f
e
d
h
g
i
j
ab
k
m
n
p
q
r
s
t
u
w
x
y
z
j
20 16 12
HH
* *
* *
*Available on request. Please contact factory.
Series II
Contact Legend
Symbol
Contact size
Receptacle Shell, Wall Mount with Narrow Flange,
Bayonet Coupling
Military No. MS3470
Miniature Cylindrical MIL-C-26482, Series 2 MS3470
wall mounting receptacle with narrow flange
AMPHENOL 8
To complete order number see ordering information, page 14.
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.
F
±.016
H
Accessory Thread
Class 2A
T
±.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 0.94 1.1875-18 UNEF .120
22 1.578 1.250 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF .120
24 1.703 1.375 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF .147
Inches
E
Millimeters
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.E
H
Accessory Thread
Class 2A
T
±.005
±.016
F
21.0
24.2
26.6
29.0
31.3
33.7
37.0
40.0
43.2
15.0
18.3
20.6
24.6
27.0
29.4
31.7
35.0
12.0
15.0
19.0
22.1
25.3
28.5
31.5
34.9
38.0
07.7
10.3
13.5
16.9
23.0
20.1
22.1
25.2
28.4
31.6
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
14.9/14.1
14.9/14.1
15.7/14.9
1.6
1.6
1.6
1.6
1.6
1.6
2.4
2.4
2.4
.5000-20 UNF
.6250-24 UNEF
.7500-20 UNEF
.8750-20 UNEF
1.0000-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
3.0
3.7
3.0
3.0
3.0
3.0
3.0
3.0
3.0
8
10
12
14
16
18
20
22
24
+
A Max . Typ.
B. Typ.
Master Keyway
T Dia. Mounting
Holes Typ. 4- Places
Blue Color Bands
E F
.290 Min. Full Thread
7.3 mm
4.8 mm. 190
3.3 mm. 130 Grommet Extension
D Dia. Max
Grommet
3 Teeth Equally Spaced
0
120 Apart
H Accessory Thread
35.7 mm
1.405 Max
Shell 8 Thru 18
37.2 mm 1.465 Max
Shell 20,22,& 24
C Dia.
Series II
Receptacle Shell, Wall Mount with Wide Flange,
Bayonet Coupling
Military No. Ms3472
Miniature Cylindrical MIL-C-26482, Series 2 MS3472
wall mounting receptacle with wide flange
AMPHENOL 9
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.
F
±.016
H 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 0.94 1.1875-18 UNEF
22 1.766 1.375 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF
24 1.891 1.500 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF
To complete order number see ordering information, page 14.
E
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.
F
±.016
H Thread
Class 2A
8
10
12
14
16
18
20
22
24
27.1
29.0
32.1
34.5
36.9
38.9
42.9
44.8
48.0
18.6
20.6
23.8
26.1
28.6
30.5
32.9
34.9
38.1
11.9
14.9
19.0
22.1
25.3
28.5
31.7
34.8
38.0
7.7
10.3
13.5
16.9
20.0
22.0
25.3
28.4
31.6
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.9
14.9/14.1
14.9/14.1
15.7/14.9
1.5
1.5
1.5
1.5
1.5
1.5
2.3
2.3
2.3
.50000-20 UNF
.6250-24 UNEF
.7500-20 UNEF
.8750-20 UNEF
1.0000-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
Millimeters
E
+
A Max . Typ.
B. Typ.
Master Keyway
.150 Dia. Mounting
Holes Typ. 4- Places
Blue Color Bands
E F
.290 Min. Full Thread
7.3 mm
4.8 mm. .190
3.3 mm. .130 Grommet Extension
D Dia. Max
Grommet
3 Teeth Equally Spaced
0
120 Apart
H Accessory Thread
35.7 mm
1.405 Max
Shell 8 Thru 18
37.2 mm 1.465 Max
Shell 20,22,& 24
C Dia.
Series II
Receptacle Shell, Cable Connecting,
Bayonet Coupling
Military No. MS3471
Miniature Cylindrical MIL-C-26482, Series 2 MS3471
cable connecting receptacle
AMPHENOL 10
Shell
Size
A
Max.
B Dia.
±.020
C Dia.
±.003
D Dia.
Max.
F
±.016
H 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 1.04 7 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 0.94 1.1875-18 UNEF
22 1.578 1.688 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF
24 1.703 1.812 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF
To complete order number see ordering information, page 14.
E
Millimeters.
Shell
Size
A
Max.
B Dia.
±.020
C Dia.
±.003
D Dia.
Max.
EF
±.016
H Thread
Class 2A
8
10
12
14
16
18
20
22
24
21.0
24.2
26.6
29.0
31.3
33.7
36.9
40.0
43.2
23.8
27.0
29.3
31.7
34.1
36.5
39.7
42.9
46.0
12.0
14.9
18.8
22.1
25.3
28.5
31.7
34.9
38.0
7.7
10.2
13.5
16.9
20.0
22.1
25.2
28.42
31.6
11.7/10.91
11.7/10.9
11.7/10.9
11.7/10.9
11.7/10.91
11.7/10.9
14.9/14.1
14.9/14.1
15.7/14.9
1.6
1.6
1.6
1.6
1.6
1.6
2.4
2.4
2.4
.5000-20 UNF
.6250-24 UNEF
.7500-20 UNEF
.8750-20 UNEF
1.0000-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
+
A Max . Typ.
B Dia.
Master
Keyway EF
.290 Min. Full Thread
7.3
4.8
mm
.190
3.3
.130
Grommet Extension
D Dia. Max
Grommet
3 Teeth Equally Spaced
0
120 Apart
35.7 mm
1.405 Max.
Shell 8 Thru 18
37.2 mm 1.465 Max.
Shell 20,22,& 24
Mm
H Accessory Thread
Blue Colour Bands
C
Dia.
mm
Series II
Receptacle Shell, Jam Nut Mount,
Bayonet Coupling
Military No. MS3474
Miniature Cylindrical MIL-C-26482, Series 2 MS3474
jam nut receptacle
AMPHENOL 11
+
A Max . Typ.
Master Keyway
K Max. Typ.
B
Blue Color Band
E
.290 Min. Full Thread
7.3
4.8 mm .190
3.3mm .130
Grommet Extension
D Dia. Max
Grommet
3 Teeth Equally Spaced
0
Spaced 120 Apart
H Accessory Thread
35.7 mm
1.405 Max.
Shell 8 Thru 18
37.2 mm 1.465 Max.
Shell 20, 22 & 24
C
Dia
mm.
Blue Color Bands
J Mounting Thread
Lockwire Hole 3-Places
Equally Spaces
F
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.
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 UNEF .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
To complete order number see ordering information , page 14.
E F
Millimeters
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.
.5000-20 UNF .5625-24 UNEF
.6250-24 .6875-24 UNEF
.7500-20 UNEF .8750-20 UNEF
.8750-20 UNEF 1.0000-20 UNEF
1.0000-20 UNEF 1.1250-18 UNEF
1.0625-18 UNEF 1.2500-18 UNEF
1.1875-18 UNEF 1.3750-18 UNEF
1.3125-18 UNEF 1.5000-18 UNEF
1.4375-18 UNEF 1.6250-18 UNEF
8
10
12
14
16
18
20
22
24
24.2
27.4
32.1
35.3
38.5
41.7
46.4
49.6
52.7
13.3
16.5
20.6
23.8
27.0
30.1
33.3
36.5
39.6
12.0
15.0
19.0
22.2
25.3
28.5
31.7
34.9
38.0
7.7
10.3
13.4
16.9
20.0
22.1
25.2
28.4
31.6
17.9/17.7
17.9/17.7
17.9/17.7
17.9/17.7
17.9/17.7
17.9/17.7
19.6/18.3
19.6/18.3
19.6/18.3
2.8/2.1
2.8/2.1
2.8/2.1
2.8/2.1
2.8/2.1
2.8/2.1
3.7/2.4
3.7/2.4
3.7/2.4
19.5
22.6
27.4
30.6
33.7
37.0
40.1
43.3
46.4
UNEF
Series II
Miniature Cylindrical MIL-C-26482, Series 2
MS3476 straight plug
MS3475 straight plug with RFI grounding fingers
AMPHENOL 12
Master
Keyway
A Dia.
Max
Over
Knurl
Blue Color
Bands
7.3 mm .290 Min. Full Thread
H Accessory Thread
3 Teeth Equally
0
Speed 120 Apart
B Dia. Max
Grommet
3.3 mm .130
4.8 mm .190 Grommet Extension
Fully Coupled Indicators
8.1 mm .320 Min.
1.420 Max
36.0 mm
Plug Shell,
Bayonet Coupling
Military No. MS3476
Master Keyway
A Dia.
Max.
Over
Knurl
7.3 mm
.290 Min. Full Thread
H Accessory Thread
3 Teeth Equally
0
Spaced 120 Apart
B Dia. Max
Grommet
3.3 mm .130
4.8 mm .190 Grommet Extension
Fully Coupled Indicators
8.1 mm .320 Min.
1.420 Max
36.0 mm
Blue
Color Band
RFI
Fingers
Military No. MS3475
Plug Shell, RFI Grounding,
Bayonet Coupling
Amphenol No. 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
8
10
12
14
16
18
20
22
24
.5000-20 UNF
.6250-24 UNEF
.7500-20 UNEF
.8750-20 UNEF
1.0000-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
Shell
Size
A Dia.
Max.
B Dia.
Max.
H
Accessory Thread
Class 2A
19.8
23.5
26.5
30.0
33.1
35.3
38.9
42.0
45.1
3.1
10.2
13.5
16.9
20.0
22.0
25.2
28.4
31.6
Millimeters
To complete order number see ordering information , page 14.
Series II
MIL-C-26482, SERIES 2
CRIMP CONTACTS
Contact
Size
Wire Range
2
AWG mm
Military
Part Number
Military
Part Number
20 24-20 0.2-0.6 M39029/5-115 M39029/4-110
16 20-16 0.5-1.4 M39029/5-116 M39029/4-111
12 14-12 2-3 M39029/5-118 M39029/4-113
CONTACT CURRENT RATING AND RETENTION
Contact
Size*
DC Test
Amperage
Contact Retention
Axial Load
lb. N
20 7.5 15 66.7
16 13.0 25 111.2
12 23.0 30 133.4
SEALING PLUGS
Contact
Size
Sealing Plugs
Military
Part Number
20 MS27488-20
16 MS27488-16
12 MS27488-12
CRIMPING TOOLS
INSERTION/REMOVAL TOOLS
Contact
Size
Wire Range Finished Wire Dia. Range Crimping Tool
Part Number
Turret or Positioner
Part Number
2
AWG mm Inch 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
Contact
Size Color Code
Military
Part Number
20 Red/White 1969/14-11
16 Blue/White 1969/14-03
12 Yellow/White 1969/14-04
Miniature Cylindrical MIL-C-26482, Series 2
contact information, sealing plugs,
*Operating individual circuits to maintain heat rise within operating
temperature requirements.
NOTE: Each connector is furnished with contacts. One spare for
inserts requiring 1 to 20 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.
AMPHENOL 13
crimping and insertion/removal tools
Pin Contacts
Socket Contacts
MB
MB
MB
Series II
MIL - C26482, Series 2
Ordering Information
HOW TO ORDER BY MILITARY PART NUMBER
MIL-C-26482 SERIES 2 CONNECTORS
MS 3470 W 12 10 P W
1 2 3 4 5 6 7
1. Connector Type
MS designates Military Standard
2. Connector Style
3470 wall mounting receptacle with narrow flange
3472 wall mounting receptacle with wide flange
3471 cable connecting receptacle
3474 am nut receptacle
3476 straight plug
3. Service Class
L aluminum shell, electroless nickel finish, fluid
resistant insert
A aluminum shell, black anodized finish, non-conductive
fluid resistant insert
W aluminum shell, olive drab cadmium plated, fluid
resistant insert
Note: For stainless steel shell, passivated, order by Amphenol proprietary Class G
Class L inactive older classes E and R (Ref. MIl-C-26482)
4.,5. Shell size and insert arrangement - See chart on page 4 and
pattern drawings that follow.
6. Contact Types
P designates pin
S designates socket
A designates less pins
B designates less sockets
Note: Use A & B only when other than a full complement of power contacts is to be
installed
7. Insert Rotation
“W”, “X”, “Y”, “Z”, designates that insert is rotated in it’s shell
from normal position. No letter required for normal (no rotation)
position. See page 4 for description of alternate positions.
For ordering information on accessories, such as protection caps and backshell
hardware, contact factory.
AMPHENOL 14
j
3475 straight plug with RFI grounding fingers
Series II
Notice : All information, including illustrations given herein is believed to be accurate at the time of printing. In lieu of design advances, Amphenol
reserves the right to change specifications without notice. This publication MIL-C-26482,Series 2 REV 01/10 supercedes all existing Amphenol
literature on Series 2 Connectors.
Series II
AMPHENOL 16
Notes :
Series II
www.czarcontent.com
www.amphenol-in.com
105, Bhosari Industrial Area,
Pune - 411 026.
Tel.: 91- 020 - 30688303, 30688304
Fax : 91 - 020 - 30688321
Email : vbhavsar@amphenol-in.com
sales@amphenol-in.com
Export
105, Bhosari Industrial Area,
Pune - 411 026, India.
Tel.: 91- 20 - 30688305, 30688353
Fax : 91- 20 - 27129158
Email : svpatil@amphenol-in.com
4931, 11th Floor, High Point IV
45, Palace Road, Bangalore 560 001.
Tel.: 91-80-22281392, 22281002
Fax : 91-80-22253859
Email : kmanoj@amphenol-in.com
MARKETING HEAD
QUARTERS Southern Region Northern and Eastern Region
1414, 14th Floor, Chiranjiv Tower,
43, Nehru Place, New Delhi - 110 019.
Tel. : 91-11-26449177
Telefax : 91-11-26449176
Email : sunily@amphenol-in.com
107, 1st Floor, ‘Am Sri Classic’,
Sarojinidevi Road, Secunderabad-500 003.
Telefax : 91- 40-66332906
Email : pprasad@amphenol-in.com
Central Region
105, Bhosari Industrial Area,
Pune - 411 026.
Tel.: 91- 20 - 27119735, 30688334
Fax: 91- 20 - 27120581, 27119735
Email : sunilp@amphenol-in.com
Western Region
Our offices in India:
Pune Operations Bangalore Operations
