The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-203-8166, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Spencer Industries Inc. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-203-8166 |
| Primary Part Number | 168721-021 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Spencer Industries Inc |
| Status | ACTIVE |
| Connector Locking Method | JACKSCREW-SOCKET |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | CRIMP SINGLE MATING END FIRST CONTACT GROUPING |
| Contact Material | COPPER ALLOY SINGLE MATING END FIRST CONTACT GROUPING |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 20 20-20 SINGLE MATING END |
| Criticality Code Justification | FEAT |
| Insert Material Document and Classification | MIL-M-14 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END |
| Precious Material and Weight | 0.010 GOLD GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END FIRST CONTACT GROUPING |
| Distance Between Mounting Facility Centers | 1.250 INCHES NOMINAL IN |
| Included Contact Quantity | 2 SINGLE MATING END FIRST CONTACT GROUPING |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES AND 0.112 INCHES IN |
| Included Contact Type | ROUND PIN SINGLE MATING END FIRST CONTACT GROUPING |
| Polarization Method | JACKSCREW |
| Contact Surface Treatment Document and Classification | MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END FIRST CONTACT GROUPING |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Contact Removability | REMOVABLE SINGLE MATING END FIRST CONTACT GROUPING |
| Thread Class | 2A AND 2B A |
| Contact Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM-B5-43 ASSN STD SINGLE MATERIAL RESPONSE SINGLE MATING END FIRST CONTACT GROUPING |
| Thread Quantity Per Inch | 32 AND 40 |
| Contact Surface Treatment | GOLD SINGLE MATING END FIRST CONTACT GROUPING |
| Threaded Device Type | COUPLING FACILITY AND MOUNTING STUD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 168721-021 | Northrop Grumman Systems Corporation (USA) |
| 168721-021 PRIMARY | Spencer Industries Inc (USA) |
NSN 5935-01-203-8166 is a Connector,receptacle,electrical, manufactured by Spencer Industries Inc, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-203-8166 has 2 manufacturer part numbers on file: 168721-021 (Northrop Grumman Systems Corporation), 168721-021 (Spencer Industries Inc).
Key specifications for 168721-021: Overall Height: 0.840 INCHES NOMINAL IN; Connector Locking Method: JACKSCREW-SOCKET; Body Style: STRAIGHT SHAPE; Terminal Type: CRIMP SINGLE MATING END FIRST CONTACT GROUPING. 26 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.