The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-149-3161, 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 Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5999-01-149-3161 |
| Primary Part Number | 65050/6389 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems |
| Status | ACTIVE |
| Material Document and Classification | QQ-A-200/9 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 6063 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 65050/6389 | Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems (GBR) |
| A4/6505016389 | Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems (GBR) |
| Reference | Meaning |
|---|---|
| A4/6505016389 | 5/9 Secondary reference Racal Radar Defence Systems Ltd |
| 2270R | 5/9 Secondary reference Thermalloy Co Inc |
| 804626-1 | 3/2 Design control — primary reference U.S. Government activity |
| 65050/6389 | 5/9 Secondary reference Racal Radar Defence Systems Ltd |
NSN 5999-01-149-3161 is a Heat Sink,electrical-Electronic, manufactured by Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-149-3161 has 2 manufacturer part numbers on file: 65050/6389 (Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems), A4/6505016389 (Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems).
2 possible matches (shared part number, not a government interchangeability claim): 3010-01-173-8488, 4820-01-513-9257. Verify interchangeability with system specifications before substitution.
Key specifications for 65050/6389: Overall Height: 0.250 INCHES NOMINAL IN; Material Document and Classification: QQ-A-200/9 FED SPEC SINGLE MATERIAL RESPONSE; Surface Treatment: ANODIZE; Material: ALUMINUM ALLOY 6063. 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.