The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-357-1030, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5999-01-357-1030 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-26074,CLASS 4,GRADE A MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541,CLASS 3,GRADE A MIL SPEC 2ND TREATMENT RESPONSE |
| Material Document and Classification | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | CHROMATE AND NICKEL |
| Material | ALUMINUM ALLOY |
| 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 | YN |
| Reference | Meaning |
|---|---|
| 149D3423P2 | 5/9 Secondary reference U.S. Government activity |
| 149D3423P0002 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5999-01-357-1030 is a Heat Sink,electrical-Electronic, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
Key specifications for 5999-01-357-1030: Surface Treatment Document and Classification: MIL-C-26074,CLASS 4,GRADE A MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541,CLASS 3,GRADE A MIL SPEC 2ND TREATMENT RESPONSE; Material Document and Classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 10.874 INCHES NOMINAL IN; Overall Width: 8.490 INCHES NOMINAL IN. 4 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.