The Contact,electrical, cataloged under National Stock Number 5999-01-166-0057, 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 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-166-0057 |
| Primary Part Number | 77C720825P1 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Mounting Facility Quantity | 5 |
| Mounting Method | UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.144 INCHES NOMINAL IN |
| Style Designator | IRREGULAR SHAPE |
| Distance Between Mounting Facility Centers | 2.200 INCHES NOMINAL IN |
| Material | METAL BODY AND CONTACT |
| 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 | J |
| Weight | 0.1100 lbs |
| Cube | 0.0050 cu ft |
| Part Number | Manufacturer |
|---|---|
| 77C720825P1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 77C720825P1 | 5/1 Secondary reference Alek Industries Inc |
| 77C718260P1 | 5/1 Secondary reference Centroid, Inc. Dba Centroid Inc |
| 77C718260P1 | 5/1 Secondary reference Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc |
| 77C718260P1 | 5/9 Secondary reference Cbc Manufacturing Llc Div Cbc Manufacturing |
NSN 5999-01-166-0057 is a Contact,electrical, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-166-0057 has 1 manufacturer part number on file: 77C720825P1 (Lockheed Martin Corporation Div Rms).
Key specifications for 77C720825P1: Overall Height: 0.323 INCHES NOMINAL IN; Mounting Facility Quantity: 5; Mounting Method: UNTHREADED HOLE(S); Unthreaded Mounting Hole Diameter: 0.144 INCHES NOMINAL IN. 6 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.