INCH - POUND
MIL-DTL-83723H
28 July 2016
SUPERSEDING
MIL-DTL-83723G
7 December 2009
DETAIL SPECIFICATION
CONNECTORS, ELECTRICAL, CIRCULAR, ENVIRONMENT RESISTING AND HERMETICALLY
SEALED, RECEPTACLES AND PLUGS, GENERAL SPECIFICATION FOR
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers the general requirements for environment resisting and
hermetically sealed, circular, electrical connectors and their associated contacts and accessories. These
connectors must utilize crimp or solder contacts and be capable of operation within the specified range
(see
3.4.6.1).
1.1.1 Series description. Basic series of connectors are as follows:
a. Series I - Type B, bayonet coupling. Specification sheets cancelled and superseded by MIL-DTL-
26482 series II, as applicable (see
6.5.1).
b. Series II - Type T, threaded coupling, intermateable with SAE-AS50151. (Inactive for new design.
For new design, use the following specifications: SAE-AS34501, SAE-AS34511, SAE-AS34521,
SAE-AS34561, and SAE-AS34591 of SAE-AS50151, as applicable.)
c. Series III - Type T, threaded and type B, bayonet coupling connectors, intermateable with
applicable MIL-DTL-26500 connectors (see section 6). In addition, requirements for hermetic
receptacles with nonremovable contacts are included. The hermetic receptacle must mate with
the appropriate bayonet or threaded type connector and must meet the same temperature
requirements.
Comments, suggestions, or questions on this document should be addressed to DLA Land and
Maritime - VAI, P.O. Box 3990, Columbus OH 43218-3990 or emailed to
CircularConnector@dla.mil.
Since contact information can change, you may want to verify the currency of this address information
using the ASSIST Online database at
https://assist.dla.mil.
AMSC N/A
FSC 5935
MIL-DTL-83723H
1.2 Classification. The classes and types (either bayonet or threaded coupling) are as follows:
Class
A
1B
Type Applicable series
Description
B
III
Aluminum shell, anodize, nonconductive finish, fluid
resistant insert.
T
II, III
B
T
B
T
B
T
T
T
B
T
T
III
II, III
III
II, III
III
II, III
II, III
III
III
II, III
III
Cancelled, superseded by class R.
Stainless steel shell, passivated, fluid resistant
insert.
Steel shell, tin finish, fluid resistant,
interfacial sealing gasket, solder cup contacts and feed
thru (straight pin) contacts.
Steel shell, tin finish, fluid resistant
interfacial sealing gasket, eyelet contacts.
Stainless steel shell, passivated, fluid resistant
insert.
Receptacles, electrodeposited nickel finish, fluid
resistant insert, eyelet contacts.
Aluminum shell, electrodeposited aluminum, conductive,
finish, nonreflective, 500 hours salt spray, fluid resistant
insert.
Plugs, electrodeposited nickel finish, fluid resistant
insert, RFI grounding, firewall, self-locking.
Receptacles, electrodeposited nickel finish, fluid
resistant insert, environmentally sealed with crimp
contacts or hermetically sealed with solder cup contacts.
Stainless steel shell, passivated, fluid resistant interfacial
sealing gasket, eyelet contacts.
Aluminum shell, electroless nickel, conductive finish,
fluid resistant insert.
Stainless steel shell, passivated, fluid resistant insert,
firewall (plug and receptacle), RFI grounding,
self-locking (plug).
Aluminum shell, nickel fluorocarbon polymer, conductive
finish, nonreflective, 500 hours salt spray, fluid resistant
insert.
Aluminum shell, cadmium, conductive finish 500
hours salt spray, fluid resistant insert.
Stainless steel shell, passivated, fluid resistant interfacial
sealing gasket, solder cup contacts and feed thru
(straight pin) contacts.
Aluminum shell, zinc nickel alloy, conductive finish,
nonreflective, 500 hours salt spray, fluid resistant insert.
F
G
H
(Hermetic)
J
(Hermetic)
K
(Firewall)
L
(Hermetic)
M
N
(Firewall,
Environmental
or Hermetic)
P
(Hermetic)
R
S
(Firewall)
T
W
Y
(Hermetic)
Z
B
T
B
T
T
B
T
B
T
B
T
B
T
III
III
III
II, III
III
III
II, III
III
II, III
III
III
III
II, III
2
MIL-DTL-83723H
1.2.1 Connector classes physical features. Physical features of the connector classes are specified in
table I.
TABLE I. Connector classes physical features.
Class
A
G
H
J
K
L
M
N
N
P
R
S
T
W
Y
Z
1/
Series II
Series III
Bayonet
coupling
Threaded
coupling
Solder
hermetic
Eyelet
Crimp
Grounding
fingers
Firew all
Temperature
C
Self-locking
coupling nut
series III,
type T
200
X
3/
200
X
150
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1/
X
X
X
X
12B
2/
X
X
1/
X
X
X
X
2/
0B
1/
2/
X
1/
X
2/
X
X
X
X
X
X
X
X
X
X
1/
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
13B
X
X
X
X
X
X
X
X
X
X
X
X
X
150
200
X
200
175
X
X
X
X
200
X
X
X
X
X
X
X
200
200
200
X
3/
200
X
3/
175 175
X
X
200
175
X
X
X
X
X
X
X
1/ Hermetic (not applicable to class N environmental connectors with crimp contacts).
2/ Firewall.
3/ See the applicable specification sheets for self-locking feature availability.
1.3 Part or Identifying Number (PIN). Unless otherwise specified in the detail specification sheet, PINs
for products acquired to this specification are formatted as shown in the following PIN example.
M83723/72
W
08
08
N
Polarizing position (see 1.5.c)
Insert arrangement
Shell size
Class
Specification sheet number
3
MIL-DTL-83723H
1.4 Shell sizes and insert arrangements. Shell sizes and insert arrangements will be in accordance
with MIL-STD-1651 for series II and MIL-STD-1554 for series III.
1.5 Polarizing position.
a. Series II and III, positions N through 5: The polarizing / insert position is the angular position of the
insert relative to the master key or keyway of the shell.
b. Series III, positions 6 through Y: The centerline of the insert is aligned on the centerline of the
master key/keyway and the angular positions of the minor key/keyway are rotated in reference to
the master key/keyway of the shell. Alternate key/keyway polarizing positions for series III are
specified in MIL-STD-1554.
c. Alternate polarizing positions, other than normal, must be indicated by the PIN letter designator
shown in MIL-STD-1651 for series II, and by the PIN numeral or letter designator shown in MIL-
STD-1554 for series III. For the normal polarizing position, letter designator “N” is required to be
included in the PIN.
1.6 Accessories. Accessories must consist of the items as specified in the supplement to this
document.
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3 and 4 of this
specification. This section does not include documents cited in other sections of this specification or
recommended for addition information or as examples. While every effort has been made to ensure the
completeness of this list, document users are cautioned that they must meet all s pecified requirements
documents cited in sections 3 and 4 of this specification, whether or not they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and
handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the
issues of these documents are those cited in the solicitation or contract.
DEPARTMENT OF DEFENSE SPECIFICATIONS
MIL-S-7742
MIL-A-8625
MIL-DTL-14072
MIL-DTL-22520
MIL-DTL-45204
MIL-R-25988/3
MIL-I-81969/14
MIL-I-81969/15
MIL-I-81969/29
MIL-DTL-83488
MS3186
MS3461
-
-
-
-
-
-
-
-
-
-
-
-
Screw Threads, Standard, Optimum Selected Series: General Specification
for.
Anodic Coatings for Aluminum and Aluminum Alloys.
Finishes for Ground Based Electronic Equipment.
Crimping Tools, Wire Terminal, General Specification for.
Gold Plating, Electrodeposited
Rubber, Fluorosilicone Elastomer, Oil- and Fuel- Resistant, O-Rings, Class 1,
Grade 60.
Installing and Removal Tools, Connector, Electrical Contact, Type III, Class 2
Composition B.
Installing and Removal Tools, Connector, Electrical Contact, Type II,
Class 2, Composition A.
Installing and Removal Tools, Connector, Electrical Contact, Type II, Class 1,
Composition B.
Coating, Aluminum, High Purity.
Connector Mounting to Connectors, Mounting Nuts, Plain Hexagon.
Test Gage, MIL-C-0026482 Series 2 or MIL-C-81703 Series 3 Contact
Retention Feature.
(See supplement 1 for list of specification sheets.)
4
MIL-DTL-83723H
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-790
MIL-STD-810
MIL-STD-889
MIL-STD-1285
MIL-STD-1554
MIL-STD-1651
- Established Reliability and High Reliability Qualified Products List (QPL)
Systems for Electrical, Electronic, and Fiber Optic Parts Specifications.
- Environmental Engineering Considerations and Laboratory Tests.
- Dissimilar Metals.
- Marking of Electrical and Electronic Parts.
- Insert Arrangements for MIL-DTL-83723 Series III and MIL-DTL-26500
Environment Resisting, Circular, Electrical Connectors.
- Insert Arrangements for SAE-AS50151, MIL-DTL-22992 (Classes C, J and R),
MIL-DTL-83723 (Series II), and SAE-AS95234 Circular Electrical Connectors.
DEPARTMENT OF DEFENSE HANDBOOK
MIL-HDBK-454
- General Guidelines for Electronic Equipment.
(Copies of these documents are available online at
http://quicksearch.dla.mil
.)
2.3 Non-Goverment publications. The following documents form a part of this document to the extent
specified herein. Unless otherwise specified, the issues of the documents are those cited in the
solicitation or contract (see
6.2).
ASME INTERNATIONAL (ASME)
ASME-B46.1
- Surface Texture (Surface Roughness, Waviness and Lay).
(Copies of this document is available online at
http://www.asme.org.)
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)
ASTM-B545
ASTM-B841
- Electrodeposited Coatings of Tin.
- Electrodeposited Coatings of Zinc Nickel Alloy Deposits.
(Copies of these documents are available at
http://www.astm.org.)
ELECTRONIC COMPONENTS INDUSTRY ASSOCIATION (ECIA)
EIA-364
EIA-364-02
EIA-364-03
EIA-364-06
EIA-364-10
EIA-364-14
EIA-364-20
EIA/ECA-364-21
EIA-364-24
EIA/ECA-364-26
EIA-364-27
EIA-364-28
EIA/ECA-364-29
EIA-364-31
- Electrical Connector/Socket Test Procedures including Environmental
Classifications.
- Air Leakage Test Procedure for Electrical Connectors.
- Altitude Immersion Test Procedure for Electrical Connectors.
- Contact Resistance Test Procedure for Electrical Connectors.
- Fluid Immersion for Test Procedure for Electrical Connectors and Sockets.
- Ozone Exposure Test Procedure for Electrical Connectors.
- Withstanding Voltage Test Procedure for Electrical Connectors, Sockets and
Coaxial Contacts.
- Insulation Resistance Test Procedure for Electrical Connectors, Sockets, and
Coaxial Contacts.
- Maintenance Aging Test Procedure for Electrical Connectors.
- Salt Spray Test Procedure for Electrical Connectors, Contacts and Sockets.
- Mechanical Shock (Specified Pulse) Test Procedure for Electrical Connectors.
- Vibration Test Procedure for Electrical Connectors and Sockets.
- Contact Retention Test Procedure for Electrical Connectors.
- Humidity Test Procedure for Electrical Connectors and Sockets.
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