The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-239-7817, 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 Dynalec Corporation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5999-01-239-7817 |
| Primary Part Number | A3800 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES |
| Unthreaded Mounting Hole Diameter | 0.209 INCHES NOMINAL ALL MOUNTING FACILITIES IN |
| Material Document and Classification | QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE |
| 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 | X |
NSN 5999-01-239-7817 is a Heat Sink,electrical-Electronic, manufactured by Dynalec Corporation, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-239-7817 has 2 manufacturer part numbers on file: A3800 (Dynalec Corporation), PK27-3 (Dynalec Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6350-01-525-1345. Verify interchangeability with system specifications before substitution.
Key specifications for A3800: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES; Overall Height: 0.906 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.209 INCHES NOMINAL ALL MOUNTING FACILITIES IN; Material Document and Classification: QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE. 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.