The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-020-4972, 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 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-020-4972 |
| Primary Part Number | 11745340 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-G-45204,TYPE 1,GRADE C GLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Overall Diameter | 0.220 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Material Document and Classification | QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | GOLD |
| Material | COPPER ALLOY |
| 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 | XN |
| Part Number | Manufacturer |
|---|---|
| 11745340 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| TXB2P-019-028G | 5/2 Secondary reference U.S. Government activity |
NSN 5999-01-020-4972 is a Heat Sink,electrical-Electronic, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-020-4972 has 1 manufacturer part number on file: 11745340 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 11745340: Surface Treatment Document and Classification: MIL-G-45204,TYPE 1,GRADE C GLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE; Overall Diameter: 0.220 INCHES NOMINAL IN; Precious Material: GOLD; Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE. 6 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.