The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-291-7747, 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. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: PG.
| Parameter | Value |
|---|---|
| NSN | 5999-01-291-7747 |
| Primary Part Number | 717538039-003 |
| Item Name | Heat Sink-Insulator |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | PG |
| Acquisition advice code | JN |
| Weight | 0.0200 lbs |
| Cube | 0.0001 cu ft |
| Part Number | Manufacturer |
|---|---|
| 717538039-003 | B & E Machine Shop (USA) |
| BG40379 | Henkel Corporation (USA) |
| 717538039-003 PRIMARY | Lockheed Martin Corporation (USA) |
NSN 5999-01-291-7747 is a Heat Sink-Insulator, manufactured by Lockheed Martin Corporation, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-291-7747 has 3 manufacturer part numbers on file: 717538039-003 (B & E Machine Shop), BG40379 (Henkel Corporation), 717538039-003 (Lockheed Martin Corporation).
Key specifications for 717538039-003: Special Features: THERMALLY CONDUCTIVE SHEET PER 717806081; 2.220 IN. LG; 0.006 IN. THK; (2) 0.188 IN. DIA. UNTHD THRU HOLES SPACED 1.875 IN. C TO C ALONG THE LENGTH IN. 0 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.
NSN 5999-01-291-7747 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.