The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-028-9744, 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 C E Niehoff & Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5999-01-028-9744 |
| Primary Part Number | N7029 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | C E Niehoff & Co |
| Status | ACTIVE |
| Material | METAL |
| 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 | JZ |
| Weight | 0.7400 lbs |
| Cube | 0.0245 cu ft |
| Part Number | Manufacturer |
|---|---|
| N7029 PRIMARY | C E Niehoff & Co (USA) |
| Reference | Meaning |
|---|---|
| G400-139 | 5/9 Secondary reference C E Niehoff & Co |
NSN 5999-01-028-9744 is a Heat Sink,electrical-Electronic, manufactured by C E Niehoff & Co, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-028-9744 has 1 manufacturer part number on file: N7029 (C E Niehoff & Co).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-224-8057. Verify interchangeability with system specifications before substitution.
Key specifications for N7029: Overall Height: 1.030 INCHES NOMINAL IN; Overall Length: 5.780 INCHES NOMINAL IN; Material: METAL. 1 specification is 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.