The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-384-2602, 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 Lockheed Martin Corporation Div Rms. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-384-2602 |
| Primary Part Number | 77C719641-9 |
| Item Name | Heat Sink-Insulator |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| 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 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JN |
| Weight | 0.0100 lbs |
| Cube | 0.0017 cu ft |
| Part Number | Manufacturer |
|---|---|
| 77C719641-9 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 60-11-D416-1671 | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| Reference | Meaning |
|---|---|
| 77C719641P9 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
NSN 5999-01-384-2602 is a Heat Sink-Insulator, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-384-2602 has 2 manufacturer part numbers on file: 77C719641-9 (Lockheed Martin Corporation Div Rms), 60-11-D416-1671 (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division).
Key specifications for 77C719641-9: Special Features: MATERIAL HAS BORON NITRIDE FILLER; OVERALL DIA 1.250 IN., MTG HOLE DIA 0.380 IN., 0.012 IN. MIN TO 0.018 IN. MAX THK IN; Part Name Assigned by Controlling Agency: INSULATOR,THERMAL. 0 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.