The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-357-8089, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-357-8089 |
| Primary Part Number | 917AS8455 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-P-81728 MIL SPEC SINGLE TREATMENT RESPONSE |
| Unthreaded Mounting Hole Diameter | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM FIRST MOUNTING FACILITY IN |
| Unthreaded Mounting Hole Diameter | 0.117 INCHES MINIMUM AND 0.123 INCHES MAXIMUM SECOND MOUNTING FACILITY IN |
| Material Document and Classification | QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | TIN AND LEAD |
| Material | COPPER |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 917AS8455 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 917AS8455 | Raytheon Company (USA) |
| 917AS8455 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 917AS8455 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5999-01-357-8089 is a Heat Sink,electrical-Electronic, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-357-8089 has 3 manufacturer part numbers on file: 917AS8455 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 917AS8455 (Raytheon Company), 917AS8455 (Raytheon Company Dba Raytheon Co).
Key specifications for 917AS8455: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY; Surface Treatment Document and Classification: MIL-P-81728 MIL SPEC SINGLE TREATMENT RESPONSE; Unthreaded Mounting Hole Diameter: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM FIRST MOUNTING FACILITY IN. 8 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.