4
H Accessory Thread
3 T eeth Equally
Placed 120 Apart
Blue Color Band
E Dia.
Max
G Min. Full
Thread
J Coupling
Thread
D Max.
FK
Polarizing
Key
A T yp.
B T yp.
B T yp.
PANEL CUTOUT
C Dia.
4 Holes
C Dia.
L Dia.
˚
Receptacle Shell, Flange Wall Mount,
Threaded Coupling
Military No. MS345 0
Amphenol/M atrix No . 9440
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
Shell
Size* A
±.031 B
C Dia.
+.010
–.005 D Max. E
Dia.
Max. F G
MIn.
H
Thread
Class 2A
J
Thread
Class 2A K
L
Dia.
±.010
Class
A, F, R,
WClass
K
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S .875 .594 .120 .150 2.031 – .305 .593/.562 .290 .5000-20 UNEF .5000-28 UNEF .083 .562
10S 1.000 .719 .120 .150 2.031 – .405 .593/.562 .290 .6250-24 UNEF .6250-24 UNEF .083 .688
10SL 1.000 .719 .120 .150 2.031 – .405 .593/.562 .290 .6250-24 UNEF .6250-24 UNEF .083 .688
12 1.094 .812 .120 .150 2.125 – .549 .781/.750 .290 .7500-20 UNEF .7500-20 UNEF .083 .812
12S 1.094 .812 .120 .150 2.031 – .549 .593/.562 .290 .7500-20 UNEF .7500-20 UNEF .083 .812
14 1.188 .906 .120 .150 2.125 – .665 .781/.750 .290 .8750-20 UNEF .8750-20 UNEF .083 .938
14S 1.188 .906 .120 .150 2.031 – .665 .593/.562 .290 .8750-20 UNEF .8750-20 UNEF .083 .938
16 1.281 .969 .120 .150 2.125 2.500 .790 .781/.750 .290 1.0000-20 UNEF 1.0000-20 UNEF .083 1.062
16S 1.281 .969 .120 .150 2.031 – .790 .593/.562 .290 1.0000-20 UNEF 1.0000-20 UNEF .083 1.062
18 1.375 1.062 .120 .177 2.125 2.500 .869 .781/.750 .290 1.0625-18 UNEF 1.1250-18 UNEF .125 1.188
20 1.500 1.156 .120 .177 2.125 2.500 .994 .781/.750 .290 1.1875-18 UNEF 1.2500-18 UNEF .125 1.312
22 1.625 1.250 .120 .177 2.125 2.500 1.119 .781/.750 .290 1.3125-18 UNEF 1.3750-18 UNEF .125 1.438
24 1.750 1.375 .147 .177 2.125 2.500 1.244 .843/.812 .290 1.4375-18 UNEF 1.5000-18 UNEF .125 1.562
28 2.000 1.562 .147 .177 2.125 2.500 1.465 .843/.812 .467 1.7500-18 UNS 1.7500-18 UNS .125 1.812
32 2.250 1.750 .173 .209 2.125 2.500 1.715 .906/.875 .467 2.0000-18 UNS 2.0000-18 UNS .125 2.062
36 2.500 1.938 .173 .209 2.125 2.500 1.930 .906/.875 .467 2.2500-16 UN 2.2500-16 UN .125 2.312
40 2.750 2.188 .173 .209 2.125 2.500 2.145 .906/.875 .467 2.5000-16 UN 2.5000-16 UN .125 2.562
MS/Standard
MS3450
wall mounting receptacle
5
H Accessory Thread
3 T eeth Equally
Placed 120 Apart
Blue Color
Band
E Dia.
Max
J
Coupling
Thread
D Max.
FG
Polarizing Key
C
B
Dia.
A
˚
Receptacle Shell, Cable Connecting,
Threaded Coupling
Military No. MS345 1
Amphenol/M atrix No . 9441
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
Shell
Size A
B
Dia.
±.031 C
D Max. E
Dia.
Max. F
±.015 G
MIn.
H
Thread
Class 2A
J
Thread
Class 2A
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S .504/.496 .729 .577/.562 2.031 – .305 .083 .290 .5000-20 UNEF .5000-28 UNEF
10S .629/. 621 .854 .577/.562 2.031 – .405 .083 .290 .6250-24 UNEF .6250-24 UNEF
10SL .629/.621 .854 .577/.562 2.031 – .405 .083 .290 .6250-24 UNEF .6250-24 UNEF
12 .754/. 746 .974 .765/.750 2.125 – .549 .083 .290 .7500-20 UNEF .7500-20 UNEF
12S .754/. 746 .974 .577/.562 2.031 – .549 .083 .290 .7500-20 UNEF .7500-20 UNEF
14 .879/. 871 1.099 .765/.750 2.125 – .665 .083 .290 .8750-20 UNEF .8750-20 UNEF
14S .879/. 871 1.099 .577/.562 2.031 – .665 .083 .290 .8750-20 UNEF .8750-20 UNEF
16 1.005/.996 1.224 .765/. 750 2.125 2.500 .790 .083 .290 1.0000-20 UNEF 1.0000-20 UNEF
16S 1.005/.996 1.224 .577/.562 2.031 – .790 .083 .290 1.00 00-20 UNEF 1.00 00-20 UNEF
18 1.131/1.121 1.349 .765/.750 2.125 2.500 .869 .12 5 .290 1.06 25-18 UNEF 1.12 50-18 UNEF
20 1.256/1.246 1.474 .765/.750 2.125 2.500 .994 .12 5 .290 1.18 75-18 UNEF 1.25 00-18 UNEF
22 1.381/1.371 1.599 .765/.750 2.125 2.500 1.119 .12 5 .290 1.3125-18 UNEF 1.3750-18 UNEF
24 1.506/1.496 1.715 .827/.812 2.125 2.500 1.244 .12 5 .290 1.4375-18 UNEF 1.5000-18 UNEF
28 1.756/1.746 1.974 .827/ .812 2.125 2.500 1.465 .125 .467 1.7500-18 UNS 1.7500- 18 UNS
32 2.007/1.996 2.224 .890/ .870 2.125 2.500 1.715 .125 .467 2.0000-18 UNS 2.0000- 18 UNS
36 2.257/2.246 2.474 .890/.870 2.125 2.500 1.930 .12 5 .467 2.2500-16 UN 2.2500-16 UN
40 2.511/2.456 2.724 .890/.870 2.125 2.500 2.145 .12 5 .467 2.5000-16 UN 2.5000-16 UN
MS/Standard
MS3451
cable connecting receptacle
6
Blue Color Band
E Dia.
Max
J Coupling
Thread
D Max.
FG
Polarizing
Key
A T yp.
B T yp.
B T yp.
PANEL CUTOUT
C Dia.
4 Holes
C Dia.
L Dia.
Receptacle Shell, Flange Box Mount,
Threaded Coupling
Military No. MS345 2
Amphenol/M atrix No . 9442
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
Shell
Size* A
±.031 B C
Dia.
D Max. E
Dia.
±.016 F G
±.015
J
Thread
Class 2A
L
Dia.
±.010
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S .875 .594 .130/.115 1.662 – .500 .578/.562 .083 .5000-28 UNEF .562
10S 1.000 .719 .130/.115 1.662 – .625 .578/.562 .083 .6250-24 UNEF .688
10SL 1.000 .719 .130/.115 1.662 – .625 .578/.562 .083 .6250-24 UNEF .688
12 1.094 .812 .130/.115 1.662 – .750 .765/.750 .083 .7500-20 UNEF .812
12S 1.094 .812 .130/.115 1.662 – .750 .578/.562 .083 .7500-20 UNEF .812
14 1.188 .906 .130/.115 1.662 – .875 .765/.750 .083 .8750-20 UNEF .938
14S 1.188 .906 .130/.115 1.662 – .875 .577/.562 .083 .8750-20 UNEF .938
16 1.281 .969 .130/.115 1.662 1.937 1.000 .765/. 750 .083 1.0000-20 UNEF 1.062
16S 1.281 .969 .130/.115 1.662 – 1.000 .577/.562 .083 1.0000-20 UNEF 1.062
18 1.375 1.062 .130/.115 1.662 1.937 1.062 .765/.750 .125 1.1250-18 UNEF 1.188
20 1.500 1.156 .130/.115 1.662 1.937 1.187 .765/.750 .125 1.2500-18 UNEF 1.312
22 1.625 1.250 .130/.115 1.662 1.937 1.312 .765/.750 .125 1.3750-18 UNEF 1.438
24 1.750 1.375 .157/.142 1.662 1.937 1.437 .827/.812 .125 1.5000-18 UNEF 1.562
28 2.000 1.562 .157/.142 1.662 1.937 1.750 .827/. 812 .125 1.7500-18 UNS 1.812
32 2.250 1.750 .183/.168 1.662 1.937 2.000 .988/. 875 .125 2.0000-18 UNS 2.062
36 2.500 1.938 .183/.168 1.662 1.937 2.250 .988/.875 .125 2.2500-16 UN 2.312
40 2.750 2.188 .183/.168 1.662 1.937 2.500 .988/.875 .125 2.5000-16 UN 2.562
MS/Standard
MS3452
box mounting receptacle
7
PANEL CUTOUT
Blue Color
Band
J Coupling
Thread
Pin Protrusion
A T yp. .045
.035 .180
.165
.128 Max.
Panel Thickness
G
Min. Full Thread
3 T eeth
Equally Spaced
120 Apart
H Accessory
Thread
.100
.095 .196
.186
M
Dia.
C
Dia.
B
Typ.
E
Dia
Max.
Polarizing
Key
L
D Max
F
O-Ring
˚
Receptacle Shell, Jam Nut Mount,
Threaded Coupling
Military No. MS345 4
Amphenol/M atrix No . 9444
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
Shell
Size* A
±.010 B
±.005
C
Dia.
±.005
D Max. E
Dia.
Max. F
±.005 G
MIn.
H
Thread
Class 2A
J
Thread
Class 2A
Panel Cutout
Dimensions
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts L
±.005
M Dia.
+.015
–.000
8S .687 1.187 1.272 2.031 – .305 .720 .290 .5000-20 UNEF .5000-28 UNEF .323 .505
10S .812 1.312 1.397 2.031 – .405 .720 .290 .6250-24 UNEF .6250-24 UNEF .385 .630
10SL .812 1.312 1.397 2.031 – .405 .720 .290 .6250-24 UNEF .6250-24 UNEF .385 .630
12 .937 1.437 1.522 2.125 – .549 .970 .290 .7500-20 UNEF .7500-20 UNEF .448 .755
12S .937 1.437 1.522 2.031 – .549 .720 .290 .7500-20 UNEF .7500-20 UNEF .448 .755
14 1.125 1.562 1.647 2.125 – .665 .970 .290 .8750-20 UNEF .8750-20 UNEF .510 .880
14S 1.125 1.562 1.647 2.031 – .665 .720 .290 .8750-20 UNEF .8750-20 UNEF .510 .880
16 1.250 1.687 1.772 2.125 2.500 .79 0 .970 .290 1.0000-20 UNEF 1.0000-20 UNEF .573 1.005
16S 1.250 1.687 1.772 2.031 – .790 .720 .290 1.0000-20 UNEF 1.00 00-20 UNEF . 573 1.005
18 1.375 1.812 1.897 2.125 2.500 .86 9 .970 .290 1.0625-18 UNEF 1.1250-18 UNEF .635 1.130
20 1.500 1.937 2.022 2.125 2.500 .99 4 .970 .290 1.1875-18 UNEF 1.2500-18 UNEF .698 1.255
22 1.625 2.156 2.241 2.125 2.500 1.119 .970 .290 1.3125-18 UNEF 1.3750-18 UNEF . 760 1.380
24 1.750 2.281 2.366 2.125 2.500 1.244 .970 .290 1.4375-18 UNEF 1.5000-18 UNEF . 823 1.505
28 2.000 2.531 2.616 2.125 2.500 1.46 5 .970 .467 1.7500-18 UNS 1.7500-18 UNS .948 1.755
32 2.375 2.781 2.866 2.125 2.500 1.71 5 .970 .467 2.0000-18 UNS 2.0000-18 UNS 1.073 2.005
36 2.625 3.031 3.116 2.125 2.500 1.930 .970 .467 2.2500-16 UN 2.2500-16 UN 1.198 2.255
40 2.875 3.281 3.366 2.125 2.500 2.145 .970 .467 2.5000-16 UN 2.5000-16 UN 1.323 2.505
MS/Standard
MS3454
jam nut receptacle
8
Polarizing Keyway
Blue Color Band
H Accessory Thread
J Coupling
Thread 3 T eeth
Equally Spaced
120 Apart
D Min. Full
Thread
C Max.
B
Dia.
E
Dia
Max.
A
Dia Max.
˚
Plug Shell,
Threaded Coupling
Military No. MS345 6
Amphenol/M atrix No . 9446
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
** Tolerance on this dimension is +.000 –.006
Shell
Size*
A
Dia.
Max.
B
Dia.
±.005
C Max.
D
MIn.
E
Dia.
Max.
H
Thread
Class 2A
J
Thread
Class 2B
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S .844 .360 2.031 – .290 .305 .5000-20 UNF .5000-28 UNEF
10S .969 .435 2.031 – .290 .405 .6250-24 UNEF .6250-24 UNEF
10SL .969 .441** 2.031 – .290 .405 .6250-24 UNEF .6250-24 UNEF
12 1.062 .550 2.125 – .290 .549 .7500-20 UNEF .7500-20 UNEF
12S 1.062 .550 2.031 – .290 .549 .7500-20 UNEF .7500-20 UNEF
14 1.156 .670 2.125 – .290 .665 .8750-20 UNEF .8750-20 UNEF
14S 1.156 .670 2.031 – .290 .665 .8750-20 UNEF .8750-20 UNEF
16 1.250 .800 2.125 2.500 . 290 . 790 1.0000-20 UNEF 1.0000-20 UNEF
16S 1.250 .800 2.031 – .290 .790 1.0000-20 UNEF 1.0000-20 UNEF
18 1.344 .925 2.125 2.500 . 290 . 869 1.0625-18 UNEF 1.1250-18 UNEF
20 1.469 1.045 2.125 2.500 .290 .994 1.1 875-18 UNEF 1.25 00-18 UNEF
22 1.594 1.170 2.125 2.500 .290 1.119 1.3125-18 UNEF 1.3750-18 UNEF
24 1.719 1.295 2.125 2.500 .290 1.244 1.4375-18 UNEF 1.5000-18 UNEF
28 1.969 1.515 2.125 2.500 .467 1.465 1.7500-18 UNS 1 .7500-18 UNS
32 2.219 1.765 2.125 2.500 .467 1.715 2.0000-18 UNS 2 .0000-18 UNS
36 2.469 1.975 2.125 2.500 .467 1.930 2.2 500-16 UN 2.2500-16 UN
40 2.719 2.225 2.125 2.500 .467 2.145 2.5 000-16 UN 2.5000-16 UN
MS/Standard
MS3456
straight plug
9
Polarizing Keyway
Blue Color Band H Accessory Thread
Fully Coupled
Indicator
J Coupling
Thread
D Min. Full
Thread
C Max.
Clutch Plate
B
Dia.
E
Dia
Max.
A
Dia Max.
3 T eeth
Equally Spaced
120 Apart
˚
Plug Shell, Self-Locking,
Threaded Coupling
Military No. MS345 9
Amphenol/M atrix No . 9816
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
** Tolerance on this dimension is +.000 –.006
Shell
Size*
A
Dia.
Max.
B
Dia.
±.005
C Max.
D
MIn.
E
Dia.
Max.
H
Thread
Class 2A
J
Thread
Class 2B
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S .963 .360 1.510 – .290 .305 .5000-20 UNEF .5000-28 UNEF
10S 1.088 .435 1.510 – .290 .405 .6250-24 UNEF .6250-24 UNEF
10SL 1.088 .441** 1.510 – .290 .405 .6250-24 UNEF .6250-24 UNEF
12 1.213 .550 1.780 – .290 .549 .7500-20 UNEF .7500-20 UNEF
12S 1.213 .550 1.510 – .290 .549 .7500-20 UNEF .7500-20 UNEF
14 1.358 .670 1.780 – .290 .665 .8750-20 UNEF .8750-20 UNEF
14S 1.358 .670 1.510 – .290 .665 .8750-20 UNEF .8750-20 UNEF
16 1.463 .800 1.780 2.500 . 290 . 790 1.0000-20 UNEF 1.0000-20 UNEF
16S 1.463 .800 1.510 – .290 .790 1.0000-20 UNEF 1.0000-20 UNEF
18 1.588 .925 1.850 2.500 . 290 . 869 1.0625-18 UNEF 1.1250-18 UNEF
20 1.713 1.045 1.850 2.500 .290 .994 1.1 875-18 UNEF 1.25 00-18 UNEF
22 1.788 1.170 1.850 2.500 .290 1.119 1.3125-18 UNEF 1.3750-18 UNEF
24 1.963 1.295 1.850 2.500 .290 1.244 1.4375-18 UNEF 1.5000-18 UNEF
28 2.213 1.515 1.850 2.500 .467 1.465 1.7500-18 UNS 1 .7500-18 UNS
32 2.463 1.765 1.850 2.500 .467 1.715 2.0000-18 UNS 2 .0000-18 UNS
36 2.713 1.975 1.850 2.500 .467 1.930 2.2 500-16 UN 2.2500-16 UN
40 2.963 2.225 1.850 2.500 .467 2.145 2.5 000-16 UN 2.5000-16 UN
MS/Standard
MS3459
straight plug with self-locking coupling nut
10
Polarizing
Keyway H Thread
C Max.
D Min. Perf.
Thread
7.500 Max
Blue Color Band Designates
Rear Release Contact Connector
A
Dia Max.
E Dia. Max.
B Dia.
.061
.046
3 Teeth
Equally Spaced
120 Apart
˚
Adapter
Mating Face of
Receptacle Shell
Plug Shell, Quick Disconnect,
Push-pull Coupling
Amphenol/Matrix No. 9817 with lanyard
Amphenol/Matrix No. 9818 without lanyard
To complete order number see how to order, page 29.
* Consult Amphenol, Sidney, NY for availability of shell sizes 44 and 48.
Shell
Size*
A
Dia.
Max. B
Dia.
C Max.
D
MIn.
E
Dia.
Max.
H
Thread
Class 2A
Amphenol/
Matr ix Part
Number for
Adapter Ring
Size
16 & 12
Contacts
Size
8, 4, 0
Contacts
8S 1.087 .360 2.031 – .290 .305 .5000-20 UNF 2500-008-0X08
10S 1.224 .435 2.031 – .290 .405 .6250-24 UNEF 2500-008-0X10
10SL 1.224 . 441 2.031 – .290 .405 .6250-24 UNEF 2500-008-0X10
12 1.355 .550 2.125 – .290 .549 .7500-20 UNEF 2500-008-0X12
12S 1.355 .550 2.031 – .290 .549 .7500-20 UNEF 2500-008-0X13
14 1.482 .670 2.125 – .290 .665 .8750-20 UNEF 2500-008-0X14
14S 1.482 .670 2.031 – .290 .665 .8750-20 UNEF 2500-008-0X15
16 1.609 .800 2.125 2.500 .290 .790 1.0000-20 UNEF 2500-008-0X16
16S 1.609 .800 2.031 – .29 0 .790 1.0000-20 UNEF 25 00-008-0X17
18 1.817 .925 2.125 2.500 .290 .869 1.0625-18 UNEF 2500-008-0X18
20 1.942 1.045 2. 125 2.500 .290 .994 1.1875 -18 UNEF 2500-008-0X20
22 2.075 1.170 2. 125 2.500 .290 1.119 1.3125-18 UNEF 2500-008-0X22
24 2.203 1.295 2. 125 2.500 .290 1.244 1.4375-18 UNEF 2500-008-0X24
28 2.516 1.515 2. 125 2.500 .467 1.465 1.7500-18 UNS 2500-008-0X28
32 2.735 1.765 2. 125 2.500 .467 1.715 2.0000-18 UNS 2500-008-0X32
36 3.015 1.975 2. 125 2.500 .467 1.930 2.2500-16 UN 2500-008-0X36
40 3.306 2.225 2. 125 2.500 .467 2.145 2.5000-16 UN 2500-008-0X40
Receptacle Adapter Ring
Required to mate the quick disconnect plug
with receptacle.
Not furnis hed with the quick disconnect plug
and must be or dered separately.
Note: Use Lockt ite Mater ial on t he threa ds for
a permanent installation to the shell.
How to Order Adapter Ring
Part Number
2500-008-0 X XX
Shell Size (varies from
connector shell siz e
designation, see last
column of table at left)
Finish
0 - Electroless Nickel
1 - Black An odize
2 - Cadmium/olive drab
3 - Stainless steel,
passivated
MS/Standard
9817, 9818
quick disconnect plug, with/without lanyard
9818 Connector 9817 Connector with Lanyard
