The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-021-5626, 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. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5999-01-021-5626 |
| Primary Part Number | 77C712530 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE |
| Overall Diameter | 0.300 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | CADMIUM |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Weight | 8.0000 lbs |
| Cube | 1.9531 cu ft |
| Part Number | Manufacturer |
|---|---|
| 77C712530 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 77C712530P001 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| TXP0508-22B | 5/2 Secondary reference U.S. Government activity |
NSN 5999-01-021-5626 is a Heat Sink,electrical-Electronic, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-021-5626 has 2 manufacturer part numbers on file: 77C712530 (Lockheed Martin Corporation Div Rms), 77C712530P001 (Lockheed Martin Corporation Div Rms).
Key specifications for 77C712530: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE; Overall Diameter: 0.300 INCHES NOMINAL IN; Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 0.430 INCHES NOMINAL IN. 5 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.