The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-366-4558, 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 Boyd Laconia Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-366-4558 |
| Primary Part Number | E5680B-0100KD |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Boyd Laconia Llc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Body Style | BOARD MOUNTED |
| Unthreaded Mounting Hole Diameter | 0.142 INCHES MINIMUM AND 0.152 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Material | ALUMINUM 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 | JN |
| Part Number | Manufacturer |
|---|---|
| E5680B-0100KD PRIMARY | Boyd Laconia Llc (USA) |
| Reference | Meaning |
|---|---|
| E5680B-0100KD | 3/9 Design control — primary reference Aavid Thermalloy Llc |
NSN 5999-01-366-4558 is a Heat Sink,electrical-Electronic, manufactured by Boyd Laconia Llc, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-366-4558 has 1 manufacturer part number on file: E5680B-0100KD (Boyd Laconia Llc).
Key specifications for E5680B-0100KD: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 1.000 INCHES NOMINAL IN; Body Style: BOARD MOUNTED; Unthreaded Mounting Hole Diameter: 0.142 INCHES MINIMUM AND 0.152 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN. 4 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.