The Contact,electrical, cataloged under National Stock Number 5999-01-048-7633, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Aptiv Services 3 (us), Llc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5999-01-048-7633 |
| Primary Part Number | C21S1620A0 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Aptiv Services 3 (us), Llc |
| Status | ACTIVE |
| Overall Diameter | 0.119 INCHES MAXIMUM IN |
| Precious Material | GOLD |
| Mounting Method | FORCE FIT |
| Pin Accommodation Diameter | 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Style Designator | SOCKET CONTACT |
| Material Document and Classification | QQ-C-530 FED SPEC ALL MATERIAL RESPONSES BODY |
| Material Document and Classification | QQ-C-530 FED SPEC ALL MATERIAL RESPONSES CONTACT |
| Surface Treatment | GOLD AND COPPER CONTACT |
| Surface Treatment | GOLD AND COPPER BODY |
| Precious Material and Location | OUTER SURFACES GOLD |
| Cable Entrance Diameter | 0.032 INCHES NOMINAL IN |
| Material | COPPER ALLOY 172 OR COPPER ALLOY 173 BODY |
| Material | COPPER ALLOY 172 OR COPPER ALLOY 173 CONTACT |
| Terminal Type and Quantity | 1 CRIMP END OPPOSITE CONTACT |
| 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 |
|---|---|
| C21S1620A0 PRIMARY | Aptiv Services 3 (us), Llc (USA) |
| C21S16-20A0 | Raytheon Systems Ltd (GBR) |
| B89789 | Mbda Uk Ltd (GBR) |
NSN 5999-01-048-7633 is a Contact,electrical, manufactured by Aptiv Services 3 (us), Llc, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-048-7633 has 3 manufacturer part numbers on file: C21S1620A0 (Aptiv Services 3 (us), Llc), C21S16-20A0 (Raytheon Systems Ltd), B89789 (Mbda Uk Ltd).
Key specifications for C21S1620A0: Overall Diameter: 0.119 INCHES MAXIMUM IN; Precious Material: GOLD; Mounting Method: FORCE FIT; Pin Accommodation Diameter: 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN. 14 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.