The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-321-2881, 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 L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 3 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. 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 | 5999-01-321-2881 |
| Primary Part Number | 427317-6 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Material Document and Classification | QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Specification/standard Data | 00752-427317 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Material | ALUMINUM ALLOY 5052 |
| 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 | 0.0300 lbs |
| Cube | 0.0052 cu ft |
| Part Number | Manufacturer |
|---|---|
| 427317-6 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
NSN 5999-01-321-2881 is a Heat Sink,electrical-Electronic, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-321-2881 has 1 manufacturer part number on file: 427317-6 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
1 possible match (shared part number, not a government interchangeability claim): 9515-01-539-3082. Verify interchangeability with system specifications before substitution.
Key specifications for 427317-6: Material Document and Classification: QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE; Specification/standard Data: 00752-427317 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Special Features: 0.900 IN. LG.,0.180 IN. H.,0.062 IN. W. IN; End Item Identification: EA-6B ACFT. 3 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.