The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-137-0271, 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 Riimic, Llc Dba Sunair Electronics. Government technical data includes 8 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-137-0271 |
| Primary Part Number | 5024031407 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Riimic, Llc Dba Sunair Electronics |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) THIRD MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.171 INCHES NOMINAL FIRST MOUNTING FACILITY IN |
| Unthreaded Mounting Hole Diameter | 0.187 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Nominal Thread Size | 0.112 INCHES THIRD MOUNTING FACILITY IN |
| Surface Treatment | ANODIZE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) THIRD MOUNTING FACILITY |
| 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 | JZ |
| Part Number | Manufacturer |
|---|---|
| 5024031407 PRIMARY | Riimic, Llc Dba Sunair Electronics (USA) |
NSN 5999-01-137-0271 is a Heat Sink,electrical-Electronic, manufactured by Riimic, Llc Dba Sunair Electronics, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-137-0271 has 1 manufacturer part number on file: 5024031407 (Riimic, Llc Dba Sunair Electronics).
Key specifications for 5024031407: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY; Mounting Facility Type and Quantity: 4 THREADED HOLE(S) THIRD MOUNTING FACILITY; Overall Height: 2.000 INCHES NOMINAL IN. 8 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.