The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-00-135-2147, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-135-2147 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Status | ACTIVE |
| 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 | JN |
| Weight | 0.0300 lbs |
| Cube | 0.0050 cu ft |
| Reference | Meaning |
|---|---|
| L-217-6-00 | 5/9 Secondary reference U.S. Government activity |
| L217-6-14 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5999-00-135-2147 is a Heat Sink,electrical-Electronic, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5999-00-407-4476. Verify interchangeability with system specifications before substitution.
Key specifications for 5999-00-135-2147: Special Features: ALUMINUM ALLOY; 1.844 IN. LG; 1.281 IN. W; FOUR UNTHREADED MTG HOLES SPACED 1.469 IN. C TO C ALONG THE LENGTH AND 0.781 IN. C TO C ALONG THE WIDTH 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.
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.