MIL-C-81659
Cannon's DPXNA (non-environmental, Type IV) and
DPXNE (environmental, Types II and III) rack and
panel connectors are designed to meet or exceed
the requirements of MIL-C-81659, Revision B. They
are used in military and aerospace applications and
computer periphery equipment requirements, and
are designed to operate in temperatures ranging
from - 65˚C to + 125˚C. DPXNA/NE connectors
are available in single, 2, 3, and 4 gang config-
urations, with a total of 12 contact arrangements
accommodation contact sizes 12, 16, 20 and 22,
and combination standard and coaxial contacts.
DPXNA/DPXNE
Contact retention of these crimp snap-in contacts is
provided by the LITTLE CAESAR® rear release
contact retention assembly. Environmental sealing
is accomplished by wire sealing grommets and
interfacial seals.
How to Order
Single Gang
DPX
B
NE - A106 - 33
P - 00
SERIES PREFIX
SHELL STYLE
CLASS
CONTACT ARRANGEMENT
SHELL TYPE
CONTACT TYPE
MODIFICATION
Two (2) Gang
DPX
2
NE - 67M
P
AW8
P
34
B - 00
SERIES PREFIX
DPX - ITT Cannon Designation
SHEL STYLE
B - ARINC 'B' Shell
CLASS (MIL-C-81659B, Class 1)....
NA - Non - Environmental (MIL-C-81659B, Type IV)
NE - Environmental (Mil-C-81659B, Types II and
III)
INSERT DESIGNATOR
In the 3 and 4 gang assemblies, the insert desig-
nation number represents cumulative (total) con-
tacts. The charts on page 26 denote shell cavity
location by layout. (If desired arrangement location
is not defined, please consult or local sales
engineering office.)
CONTACT ARRANGEMENT
See page 31
SHELL TYPE
'33' for Plug; '34' for Receptacle
CONTACT TYPE
'P' for Pin (Standard on '34' receptacle except
A106 layout which has reversed contact sex)
'S' for Socket (Standard on '33' plug except A106
layout which has reversed contact sex)
MODIFICATION CODES
- 00 Standard
- 01 Standard with clinch nuts in the mounting
holes (34 only).
- 02 Standard with tabs for attaching junction
shells.
- 03 Standard with mounting holes .120 dia.
countersunk 100˚ to . 230 dia. (33. only).
- 17 Combination of 01** and 02** (clinch
nuts in mounting holes - 34 only and tabs
for attaching junction shells).
- 22 Standard with clinch nuts (.33 only).
- 23 Standard with standard floating eyelets.
- 29 Standard except less grommet (NE, pin
only).
- 30 Same as - 29** except with tabs for
attaching junction shells.
- 33 Same as - 29** except with clinch nuts.
- 37 Same as - 29** except with clinch nuts
and tabs for attacting
junction shells.
- 39 Standard with standard floating eyelets
and tabs for attaching junction shells.
NOTE:
For additional modification codes please consult the
factory
SERIES PREFIX
TWO (2) GANG SHELL
CLASS
CONTACT ARRANGEMENT (Side A)
CONTACT TYPE
CONTACT ARRANGEMENT (Side B)
CONTACT TYPE
SHELL TYPE
SHELL STYLE
MODIFICATION
Three (3) Gang
DPX 3
NE
-
240M
-
33
PS
-
00
SERIES PREFIX
THREE (3) GANG SHELL
CLASS
INSERT DESIGNATOR
SHELL TYPE
CONTACT TYPE
MODIFCATION
Four (4) Gang
DPX
4
NE
-
104M
-
34
P
-
00
SERIES PREFIX
FOUR (4) GANG SHELL
CLASS
INSERT DESIGNATOR
SHELL TYPE
CONTACT TYPE
MODIFICATION
NOTE:
On 3 & 4 gang assemblies, combination layouts, the contact type designator of the A106 layout. If applicable, precedes the
designator for standard contact sex layouts. See three (3) gang nomenclature breakdown above for 240M example (67MS, 67 MS,
A106P).
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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MIL-C-81659 Rack and Panel Connectors
Insert Designator Number
DPX3NA/DPX3NE
MS3157
ITTC
Side A
Side B
Side C
MS3157
ITTC
Side A
Side B
Side C
DPXNA/DPXNE
DPX4NA/DPX4NE
MS3157 ITTC
Side A
Side B
Side C
Side D
MS3157 ITTC Side A
Side B
Side C
Side D
0005
0006
0013
0014
0021
0022
0029
0030
0037
0038
0045
0046
0065
78M
78M
120M
120M
135M
135M
171M
171M
201M
201M
A318
A318
24M
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
A106P
A106S
W8MP
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
A106P
A106S
W8MP
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
A106P
A106S
W8MP
0066
0067
0068
0073
0074
0075
0076
0079
0080
0091
0092
0157
0158
24M
122M
122M
142M
142M
240M
240M
A240M
A240M
279M
279M
244M
244M
W8MS W8MS W8MS
W8MP W8MP A106S
W8MS W8MS A106P
67MP
67MS
67MP
67MS
67MP
67MS
67MP
67MS
67MP
67MS
W8MP
W8MS
A106S
A106P
0007
0008
0015
0016
0023
0024
0031
0032
0039
0040
0047
0048
104M 26MP
104M 26MS
160M 40MP
160M 40MS
180M 45MP
180M 45MS
228M 57MP
228M 57MS
268M 67MP
268M 67MS
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
26MP
26MS
40MP
40MS
45MP
45MS
57MP
57MS
67MP
67MS
0063
0064
0085
0086
0095
0096
0097
0098
0099
0100
0101
0102
95M
95M
10W3MP 10W3MP W8MP 67MP
10W3MS 10W3MS W8MS 67MS
W8MP
W8MS
W8MP
W8MS
67MP
67MS
67MP
67MS
A106S
A106P
67MP 67MP
67MS 67MS
A106S A106S
A106P A106P
A106S W8MP
A106P W8MS
W8MP W8MP
W8MS W8MS
67MP 67MP
67MS 67MS
150M W8MP
150M W8MS
326M A106S
326M A106P
287M A106S
287M A106P
189M A106S
189M A106P
346M A106S
346M A106P
A106S 67MP
A106P 67MS
A106S A106S 67MP
A106P A106P 67MS
A106S A106S 32W4MP
A106P A106P 32W4MS
A424 A106P A106P A106P A106P
A424 A106S A106S A106S A106S
Performance and Material Specifications
MATERIALS AND FINISHES
Description
Shell
Insulators
Elastomers
Contacts
Insulator Retaining Plate
Junction Shells
(Not available for four gang)
Clinch Nuts
Float Mounts
Polarizing Posts
Polarizing Keys & Retaining Plate
Screws
Lockwashers
Material
Aluminum alloy
Thermoplastic or thermosetting plastic
Silicone rubber (ITT Cannon Blend)
Copper alloy
Aluminum alloy
Aluminum alloy
Stainless steel
Stainless Steel
Zinc (die cast )
Nickel Silver
Brass
Phosphor Bronze
Finish
Cadmium plating, Type II, Class 3/QQ-P-416 with
yellow chromate finish (underplating may be used)
None
None
Gold plate per MIL-G-45204, Type 1, Grade C,
Class 1 with suitable underplating (silver not used)
Anodize, blue color
Same as shell
Cadmium Plating
None
Cadmium plating
None
Cadmium plating
Cadmium plating
ELECTRICAL
Insulation O.D.
Limits (Inch)
Max.
.135 (3.43)
Max. Current
for Tests
(Amps)
(Mil-C-39029)
23.0
17.0
13.0
-
-
7.5
-
3.0
5.0
-
2.0
Max. Potential
Drop
(Millivolts)
at 25 C
63
60
68
-
75
83
-
68
110
-
80
Contact
size
12
Wire
Size
12
14
16
Test Current
per Mil-C-39029
23.0
17.0
13.0
16
18
20
20
.103 (2.62)
-
7.5
7.5
20
22
24
22
.071 (1.80)
-
3.0
5.0
22
24
26
.054 (1.37)
-
2.0
Note - The maximum contact resistance listed above is with sliver plated wire.
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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MIL-C-81659 Rack and Panel Connectors
Shell Dimensions
DPXB-33
TWO HOLES
.120 (3.05) DIA. FOR
MTG. REF. ONLY
2.000 (50.80)
MTG. DATUM
DPXNA/DPXNE
MAX. GROMMET
EXTENSION
.954
(24.23)
1.541 (39.14) MAX.
2.320 (58.93) MAX. WITH COAX
.720 + .005
_
(18.29 + 0.13)
_
2.047
(52.00)
1.720 + .005
_
(43.69 + 0.13)
_
.766
(19.46)
NOTE: DPXME AND
DPXNE GROMMETS ARE
APPLICABLE TO ALL
SHELL SIZES
POLARIZING POST
.718 + .005
_
(18.24 + 0.13)
_
1.437 (36.50)
REF.
.120 (3.05) & C' SUNK
82 X .230 (5.84) DIA.
4 HOLES
.125 (3.18)
DPXB-34
TWO HOLES .120 (3.05)
DIA. FOR MTG.
REF. ONLY
MTG. DATUM
1.750 + .005 TYP.
_
(44.45 + 0.13)
_
.120 (3.05) DIA.
4 MTG. HOLES
MAX. GROMMET
EXTENSION
1.061
(26.95)
1.634 (41.50) MAX.
2.431 (61.29) MAX. WITH COAX
.720 + .005
_
(18.29 + 0.13)
_
2.012
(51.11)
1.720 + .005
_
(43.69 + 0.13)
_
1.405
(35.69)
+
3 POLARIZING
KEYS
+
2.000 (50.80)
.718 + .005
_
(18.24 + 0.13)
_
.060
(1.52)
.125
(3.18)
DPX2-33B
.120 (3.05) DIA. & C' SUNK
82 x.230 (5.84) DIA. 4 HOLES
SHOWN FOR REF.
TOP
2 HOLES .120 (3.05)DIA.
FOR MTG. REF. ONLY
.766
(19.46)
.125 (3.18)
3.110
(78.99)
3 POLARIZING
POSTS
.988 + .004
_
(25.10 + 0.10)
_
2.783 + .005
_
(70.69 + 0.13)
_
.720 + .005
_
(18.29 + 0.13)
_
MTG.DATUM
.718 + .005
_
(18.24 + 0.13)
_
1.437 (36.50)
REF
.188 (4.78) R. TYP.
.954
(24.23)
2.000
(50.80)
DPX2-34B
2 HOLES .120 (3.05)
DIA.FOR MTG.
REF.ONLY
1.750 + .015
_
(44.45 + 0.38)
_
.188(4.78) R. TYP.
060 (1.52)
.125 (3.18)
TOP
3.075
(78.10)
2.783 + .005
_
(70.69 + 0.13)
_
2.468 + .015
_
(62.69 + 0.38)
_
.720 + .005
_
(18.29 + 0.13)
_
3 POLARIZING
KEYS
+
+
MTG DATUM
.718 + .005
_
(18.24 + 0.13)
_
1.437 (36.50)
REF
4 MTG. HOLES
.120 (3.05) DIA. FOR
#4-40 SCREWS
1.061
(26.95)
2.000 (50.80)
All tolerances + .015 (0.38) unless other wise noted.
_
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
MIL-C-81659 Rack and Panel Connectors
Shell Dimensions
DPX3-33
.766 (19.46)
2.000
(50.80)
1.612
(40.94)
.125 (3.18)
1.750
(44.45)
2.000
(50.80)
DPXNA/DPXNE
DPX3-34
1.061
(26.95)
.060 (1.52)
4.354
(110.59)
4.026
(102.26)
4.318
(109.68)
4.026
(102.26)
MTG. DATUM
.988
(25.10)
3.711
(94.26)
MTG.DATUM
.718
(18.24)
.282 (7.16)
1.437
(36.50)
.180 R. TYP.
(4.57)
.718
(18.24)
.282
(7.16)
6 MTG HOLES
.120 (3.05) DIA.
1.437
(36.50)
.125 (3.18)
DPX4-33
.766 (19.46)
3.860
(98.04)
1.612
(40.94)
.125 (3.18)
DPX4-34
3.860 (98.04)
3.610 (91.69)
.060 (1.52)
1.061
(26.95)
3.110
(78.99)
2.783
(70.69)
2.468
(62.69)
3.075
(78.10)
2.783
(70.69)
.988
(25.10)
.930
(23.62)
MTG. DATUM
1.648
(41.86)
.180 R TYP.
(4.57)
.282 (7.16)
10 MTG. HOLES
.120 (3.05) DIA.
MTG. DATUM
.930
(23.62)
1.648
(41.86)
.125 (3.18)
.282 (7.16)
Modification Code
.025 (0.64)
.005 (0.13)
.032
(0.81)
.030
(0.76)
.015
(0.38)
MIN
.064
(1.63)
.140
(3.56)
.289
(7.34)
.250
(6.35)
DIA TYP
.115
(2.92)
DIA
WASHER
RIVET
33 CONNECTOR
34 CONNECTOR
FRONT FACE OF FLANGE
-2301 Modification
Floating Eyelets
-0201 Modification
Tabs for attaching J/S
Recommended Mated
Position
All tolerances + .015 (0.38) unless otherwise noted.
_
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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MIL-C-81659 Rack and Panel Connectors
Panel Cutouts
DPXB
1.437
(36.50)
C OF
L
INSERT
C
L
1.720
(43.70)
.720
(18.29)
.561
(14.25)
.125 R. TYP.
(3.18)
1.350
(34.30)
.718
(18.24)
1.720
(43.70)
.120 DIA.
4 HOLES
C OF INSERT
L
DPXNA/DPXNE
1.437
(36.50)
C
L
.125 R.
TYP
1.437
.718
C
L
1.720
.718
(18.24) C
L OF INSERT
.580
(14.73)
1.440
(3.66)
.720
(18.29)
1.44
.720
.58
1.25
1.78
-34 Front Mount
.26
1.25
(3.18)
1.78 (4.52)
-33 Rear Mount
-34 Rear Mount
.260 (6.60)
.120 (3.05) DIA.
4 HOLES
1.720
(43.69)
-33 Front Mount
.120 (3.05) DIA.
4 HOLES
DPX2
1
.125 R. TYP.
(3.18)
1.720 (43.70)
.718
(18.24)
C
L
1.391
(35.33)
2.783
(70.69)
C
L
2.460
(62.50)
1.391
(35.33)
C
L
2.783
(70.69)
C
L
1.437
(36.50)
-33B Front Mount
2.500
(63.50)
1.391
(35.33)
C
L
2.783
(70.69)
1.970
(50.04)
2.500
(63.50)
1.437
(36.50)
.120 (3.05) DIA.
4 HOLES
.718
(18.24)
1.437
(36.50)
.120 (3.05) DIA.
4 HOLES
C
L
.718
(18.24)
.120(3.05) DIA. 6 HOLES
OMIT CENTER
HOLES FOR - 33B
1.260
(32.00)
1.780
(45.21)
-34B Front Mount
.156 R. TYP.
(3.96)
1.780
(45.21)
-33B Rear Mount
-34B Rear Mount
1
For - 23 float mtg. mod. 1.78 (45.21)
DPX3
1.437
(36.50)
1.437
(36.50)
.718 (18.24)
.120 (3.05) DIA.
6 HOLES
C
L
.125 R. TYP.
(3.18)
2.013
(51.13)
2.013
(51.13)
C
L
4.026
(102.26)
3.740
(95.00)
C
L
4.026
(102.26)
3.740
(95.00)
3.220
(81.79)
.718 (18.24)
.120 (3.05) DIA.
6 HOLES
C
L
1.780
(45.21)
Front Mount
1.780
(45.21)
Rear Mount
1.260
(30.00)
All tolerance + .015 (0.38) unless other wise noted.
_
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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