The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-042-1858, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-042-1858 |
| Primary Part Number | M81659/31A20033 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | CRIMP SINGLE MATING END ALL CONTACT GROUPINGS |
| Contact Material | COPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 67 SINGLE MATING END |
| Shell Surface Treatment | CADMIUM |
| Precious Material and Weight | 0.067 GOLD GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END ALL CONTACT GROUPINGS |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 1.720 INCHES NOMINAL IN |
| Included Contact Quantity | 3 SINGLE MATING END FIRST CONTACT GROUPING |
| Included Contact Quantity | 64 SINGLE MATING END SECOND CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | QQ-P-416,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE |
| Specification/standard Data | 81349-MIL-C-81659/31 GOVERNMENT SPECIFICATION |
| Included Contact Type | ROUND PIN SINGLE MATING END ALL CONTACT GROUPINGS |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 1.435 INCHES NOMINAL IN |
| Environmental Protection | COLD RESISTANT AND SHOCK PROOF AND SALT WATER RESISTANT AND VIBRATION RESISTANT |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Distance From Mounting Shoulder to Front Face | 1.446 INCHES NOMINAL IN |
| Contact Removability | REMOVABLE SINGLE MATING END ALL CONTACT GROUPINGS |
| Test Data Document | 81349-MIL-C-81659 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Contact Surface Treatment | GOLD SINGLE MATING END ALL CONTACT GROUPINGS |
| Insert Material | RUBBER SINGLE MATING END |
| Shell Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M81659/31A20033 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| M81659/31A20033 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS81659/31 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MILC81659-31 | 5/9 Secondary reference U.S. Government activity |
NSN 5935-01-042-1858 is a Connector,receptacle,electrical, manufactured by Sae International Dba Sae International, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-042-1858 has 1 manufacturer part number on file: M81659/31A20033 (Sae International Dba Sae International).
10 possible matches (shared part number, not a government interchangeability claim): 5935-01-044-9628, 5935-01-114-6561, 5935-01-200-4005. Verify interchangeability with system specifications before substitution.
Key specifications for M81659/31A20033: Overall Height: 1.997 INCHES MINIMUM AND 2.027 INCHES MAXIMUM IN; Shell Type: SOLID; Body Style: STRAIGHT SHAPE; Terminal Type: CRIMP SINGLE MATING END ALL CONTACT GROUPINGS. 25 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.