The Contact,electrical, cataloged under National Stock Number 5999-01-166-2959, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 10 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-166-2959 |
| Primary Part Number | 77C718261P001 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 |
| Surface Treatment Document and Classification | MIL-C-26074 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT |
| Mounting Method | UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.144 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR SHAPE |
| Material Document and Classification | QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT |
| Distance Between Mounting Facility Centers | 2.352 INCHES NOMINAL IN |
| Surface Treatment | NICKEL BODY AND CONTACT |
| Material | BERYLLIUM BODY AND CONTACT |
| Terminal Type and Quantity | 2 EYELET AXIALLY AT EACH END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | X |
| Part Number | Manufacturer |
|---|---|
| 77C718261P001 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 5999-01-166-2959 is a Contact,electrical, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-166-2959 has 1 manufacturer part number on file: 77C718261P001 (Lockheed Martin Corporation Div Rms).
Key specifications for 77C718261P001: Overall Height: 0.160 INCHES NOMINAL IN; Mounting Facility Quantity: 2; Surface Treatment Document and Classification: MIL-C-26074 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT; Mounting Method: UNTHREADED HOLE(S). 10 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.