The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-610-7635, 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 Northrop Grumman Systems Corporation. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-610-7635 |
| Primary Part Number | 12-204163-1 |
| Item Name | Heat Sink-Insulator |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Material | PLASTIC POLYESTER |
| 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 | JN |
| Part Number | Manufacturer |
|---|---|
| 12-204163-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5999-01-610-7635 is a Heat Sink-Insulator, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-610-7635 has 1 manufacturer part number on file: 12-204163-1 (Northrop Grumman Systems Corporation).
Key specifications for 12-204163-1: Overall Length: 7.879 INCHES NOMINAL IN; Overall Width: 5.548 INCHES NOMINAL IN; Special Features: THERMAL IMPEDANCE 0.95DEG C-IN2/W (AT 50 PSI); POLYESTER BASED; FOR APPLICATIONS REQUIRING NON-SILICON-SENSITIVE APPLICATIONS; EXCELLENT DIAELECTRIC AND PHYSICAL STRENGTH DEGC; Part Name Assigned by Controlling Agency: (DWG TITLE) GASKET-THERMAL VRFC; GASKET, THERMAL. 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.