The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-406-4124, 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 Telephonics Corp. Government technical data includes 9 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 | 5999-01-406-4124 |
| Primary Part Number | 680-1096-001 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-C-5541 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE |
| Body Style | RECTANGULAR |
| Unthreaded Mounting Hole Diameter | 0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Material Document and Classification | QQ-A-5052-H32 FED STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | CHROMATE |
| Accommodated Device Mounting Hole Pattern Style | THREE HOLE |
| Material | ALUMINUM ALLOY 5052 |
| Accommodated Device Mounting Hole Quantity | 3 |
| 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 |
|---|---|
| 680-1096-001 PRIMARY | Telephonics Corp (USA) |
NSN 5999-01-406-4124 is a Heat Sink,electrical-Electronic, manufactured by Telephonics Corp, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-406-4124 has 1 manufacturer part number on file: 680-1096-001 (Telephonics Corp).
Key specifications for 680-1096-001: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.080 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE; Body Style: RECTANGULAR. 9 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.