The Adapter,connector, cataloged under National Stock Number 5935-00-666-1657, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-00-666-1657 |
| Item Name | Adapter,connector |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Status | ACTIVE |
| Connector Locking Method | EXTERNALLY THREADED SHELL AND INTERNALLY THREADED COUPLING RING |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE, INTERNAL COUPLING |
| Contact Material | COPPER ALLOY ALL MATING ENDS SINGLE CONTACT GROUPING |
| Mating End Quantity | 2 |
| Precious Material | SILVER |
| Contact Position Arrangement Style | NONSTD ALL MATING ENDS |
| Shell Surface Treatment | SILVER |
| Precious Material and Weight | 0.110 SILVER GRAINS, TROY |
| Included Contact Quantity | 1 ALL MATING ENDS SINGLE CONTACT GROUPING |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.750 INCHES AND 1.250 INCHES IN |
| Included Contact Type | COAXIAL SOCKET ALL MATING ENDS SINGLE CONTACT GROUPING |
| Precious Material and Location | CONTACT AND SHELL SURFACES SILVER |
| Contact Removability | NONREMOVABLE ALL MATING ENDS SINGLE CONTACT GROUPING |
| Thread Class | 2A AND 2B A |
| Thread Quantity Per Inch | 20 AND 18 |
| Contact Surface Treatment | SILVER ALL MATING ENDS SINGLE CONTACT GROUPING |
| Threaded Device Type | COUPLING FACILITY |
| Thread Series Designator | UN AND UNEF |
| Radio Frequency Type Contact Characteristic Impedance in Ohms | 52.0 ALL MATING ENDS SINGLE CONTACT GROUPING |
| Insert Material | PLASTIC, POLYETHYLENE (PP) ALL MATING ENDS |
| Shell Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| RE 49F 367 D | 3/2 Design control — primary reference U.S. Government activity |
| UG240U | 5/2 Secondary reference U.S. Government activity |
NSN 5935-00-666-1657 is a Adapter,connector, classified under FSC 5935, Connectors, Electrical. Status: active.
Key specifications for 5935-00-666-1657: Connector Locking Method: EXTERNALLY THREADED SHELL AND INTERNALLY THREADED COUPLING RING; Shell Type: SOLID; Body Style: STRAIGHT SHAPE, INTERNAL COUPLING; Contact Material: COPPER ALLOY ALL MATING ENDS SINGLE CONTACT GROUPING. 23 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.