The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-313-3626, 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 Kato Engineering Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-313-3626 |
| Primary Part Number | 042-00243-00 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 12 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Material | ALUMINUM ALLOY 6063 |
| 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 | J |
| Part Number | Manufacturer |
|---|---|
| 042-00243-00 PRIMARY | Kato Engineering Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5961PL0957031 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5999-01-313-3626 is a Heat Sink,electrical-Electronic, manufactured by Kato Engineering Inc., classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-313-3626 has 1 manufacturer part number on file: 042-00243-00 (Kato Engineering Inc.).
Key specifications for 042-00243-00: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 12 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY; Overall Height: 1.180 INCHES NOMINAL IN; Overall Length: 8.500 INCHES NOMINAL IN. 3 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.