The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-465-3239, 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 Us Army Aviation and Missile Command. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-465-3239 |
| Primary Part Number | 11438173-2 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 SLOT SINGLE MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-C-5541, CLASS3 MIL SPEC ALL TREATMENT RESPONSES |
| Body Style | EXTRUDED |
| Mounting Slot Length | 0.190 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Material Document and Classification | QQ-A-200/8 FED SPEC ALL MATERIAL RESPONSES |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 11438173-2 | Raytheon Company (USA) |
| 11438173-2 | Raytheon Company Dba Raytheon Co (USA) |
| 11438173-2 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 11438173 | D/9 Drawing number reference only Us Army Aviation and Missile Command |
| 11438173-2 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5999-01-465-3239 is a Heat Sink,electrical-Electronic, manufactured by Us Army Aviation and Missile Command, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-465-3239 has 3 manufacturer part numbers on file: 11438173-2 (Raytheon Company), 11438173-2 (Raytheon Company Dba Raytheon Co), 11438173-2 (Us Army Aviation and Missile Command).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-465-3245, 5999-01-465-3248. Verify interchangeability with system specifications before substitution.
Key specifications for 11438173-2: Mounting Facility Type and Quantity: 4 SLOT SINGLE MOUNTING FACILITY; Overall Height: 1.560 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CLASS3 MIL SPEC ALL TREATMENT RESPONSES; Body Style: EXTRUDED. 7 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.