The Contact,electrical, cataloged under National Stock Number 5999-00-005-6523, 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 Alliant Techsystems Operations Llc Div Defense Electronic Systems. Government technical data includes 11 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 | 5999-00-005-6523 |
| Primary Part Number | 2658557 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Surface Treatment Document and Classification | MIL-C-26074 MIL SPEC ALL TREATMENT RESPONSES BODY AND CONTACT |
| Mounting Method | THREADED HOLE(S) |
| Style Designator | TUNING FORK CONTACT |
| Material Document and Classification | QQ-C-530 CONDITION H FED SPEC ALL MATERIAL RESPONSES BODY AND CONTACT |
| Surface Treatment | NICKEL BODY AND CONTACT |
| Thread Class | 2B |
| Thread Quantity Per Inch | 80 |
| Material | BERYLLIUM AND COPPER BODY AND CONTACT |
| Terminal Type and Quantity | 1 THREADED HOLE END OPPOSITE CONTACT |
| Thread Series Designator | UNF |
| 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 | 0.1000 lbs |
| Cube | 0.0167 cu ft |
| Part Number | Manufacturer |
|---|---|
| 2658557 PRIMARY | Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA) |
NSN 5999-00-005-6523 is a Contact,electrical, manufactured by Alliant Techsystems Operations Llc Div Defense Electronic Systems, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-005-6523 has 1 manufacturer part number on file: 2658557 (Alliant Techsystems Operations Llc Div Defense Electronic Systems).
Key specifications for 2658557: Mounting Facility Quantity: 1; Surface Treatment Document and Classification: MIL-C-26074 MIL SPEC ALL TREATMENT RESPONSES BODY AND CONTACT; Mounting Method: THREADED HOLE(S); Style Designator: TUNING FORK CONTACT. 11 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.