The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-331-5746, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 — Miscellaneous Electrical and Electronic Components (FSG 59) |
| Manufacturers | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); Essex Electro Engineers Inc (CAGE 21269) |
| Parameter | Value |
|---|---|
| NSN | 5999-01-331-5746 |
| Primary Part Number | 66A97-C118-1 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 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 |
| Unit of Issue | EA |
| Acquisition advice code | Z |
| Weight | 3.0400 lbs |
| Cube | 0.2042 cu ft |
| Part Number | Manufacturer |
|---|---|
| 66A97-C118-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 66A97-C118-1 | Essex Electro Engineers Inc (USA) |
| Reference | Meaning |
|---|---|
| 66A97-C118-1 | 5/9 Secondary reference Thermalloy Co Inc |
| 66A97-C118-1 | 5/9 Secondary reference Eg and G Wakefield Engineering |
| 66A97-C118-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5999-01-331-5746 is a Heat Sink,electrical-Electronic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-331-5746 has 2 manufacturer part numbers on file: 66A97-C118-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 66A97-C118-1 (Essex Electro Engineers Inc).
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.