PartsTable
Technical Data Sheet

M81659/31A20025 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

M81659/31A20025: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include body_style: STRAIGHT SHAPE, FLUSH MOUNT, overall_width: 1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN, overall_height: 1.997 INCHES MINIMUM AND 2.027 INCHES MAXIMUM IN, overall_length: 1.634 INCHES MAXIMUM IN, environmental_protection: HUMIDITY RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT, unthreaded_mounting_hole_diameter: 0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5935-01-325-4429, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
M81659/31A20025
NSN: 5935-01-325-4429
FSC: 5935 — Connectors, Electrical
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, FLUSH MOUNT
overall_width1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN
overall_height1.997 INCHES MINIMUM AND 2.027 INCHES MAXIMUM IN
overall_length1.634 INCHES MAXIMUM IN
mating_end_quantity1
environmental_protectionHUMIDITY RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT
unthreaded_mounting_hole_diameter0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
distance_from_mounting_shoulder_to_front_face0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
center_to_center_distance_between_mounting_facilities_parallel_to_height1.720 INCHES NOMINAL IN
distance_between_centerlines_of_mounting_facilities_parallel_to_body_width1.725 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN
NSN5935-01-325-4429
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN M81659/31A20025 MFR CONNECTOR,RECEPTACLE,E
KEY FEATURES
•
BODY STYLE: STRAIGHT SHAPE, FLUSH MOUNT
•
MATING END QUANTITY: 1
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO HEIGHT: 1.720 INCHES NOMINAL IN
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH: 1.725 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.997 INCHES MINIMUM AND 2.027 INCHES MAXIMUM IN
BODY STYLESTRAIGHT SHAPE, FLUSH MOUNT
MATING END QUANTITY1
UNTHREADED MOUNTING HOLE DIAMETER0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
OVERALL LENGTH1.634 INCHES MAXIMUM IN
OVERALL WIDTH1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO HEIGHT1.720 INCHES NOMINAL IN
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH1.725 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN
ENVIRONMENTAL PROTECTIONHUMIDITY RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT
DISTANCE FROM MOUNTING SHOULDER TO FRONT FACE0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
SAE-AS81659/31Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-C-81659/31Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M81659/31A20025?
M81659/31A20025 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace M81659/31A20025?
There are 2 known substitutes for M81659/31A20025: SAE-AS81659/31, MIL-C-81659/31. Substitute compatibility should be verified for your specific system.
What is the NSN for M81659/31A20025?
M81659/31A20025 is cataloged in the U.S. Government catalog under NSN 5935-01-325-4429. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.