The Adapter,connector, cataloged under National Stock Number 5935-00-730-3942, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sigmation Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-00-730-3942 |
| Primary Part Number | 405531-1 |
| Item Name | Adapter,connector |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Sigmation Inc |
| Status | ACTIVE |
| Connector Locking Method | INTERNALLY THREADED SHELL AND BAYONET PIN |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING |
| Nominal Thread Length | 0.217 INCHES IN |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Mating End Quantity | 2 |
| Shell Surface Treatment | CHROMATE |
| Shell Material Document and Classification | QQ-A-225,T651 FED SPEC SINGLE MATERIAL RESPONSE |
| Shell Surface Treatment Document and Classification | MIL-C-5541,TY 1 OR TY 2,GRADE C,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Threaded Device Type | COUPLING FACILITY |
| Thread Series Designator | UNEF |
| 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 |
|---|---|
| 405531-1 | Sigmation Inc (USA) |
| BP17481 | Burke Products Inc (USA) |
| 405531-1 | Starwin Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 405531-1 | 3/2 Design control — primary reference U.S. Government activity |
| 405531-1 | 5/9 Secondary reference U.S. Government activity |
| 405531-1 | 5/9 Secondary reference Burke Products Inc |
NSN 5935-00-730-3942 is a Adapter,connector, manufactured by Sigmation Inc, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-00-730-3942 has 3 manufacturer part numbers on file: 405531-1 (Sigmation Inc), BP17481 (Burke Products Inc), 405531-1 (Starwin Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-132-7233. Verify interchangeability with system specifications before substitution.
Key specifications for 405531-1: Connector Locking Method: INTERNALLY THREADED SHELL AND BAYONET PIN; Shell Type: SOLID; Body Style: STRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING; Nominal Thread Length: 0.217 INCHES IN. 16 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.