The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-198-3271, 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 Astronautics Corporation of America. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-198-3271 |
| Primary Part Number | 18717-001 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Overall Diameter | 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-200,ALLOY 6063-T5 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| 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 | JZ |
| Weight | 0.0100 lbs |
| Cube | 0.0035 cu ft |
| Part Number | Manufacturer |
|---|---|
| 18717-001 PRIMARY | Astronautics Corporation of America (USA) |
| Reference | Meaning |
|---|---|
| 82-1345410-4 | 5/9 Secondary reference Gte Government Systems Corp Strategic Systems Div |
| 3257B | 5/9 Secondary reference Aavid Thermalloy Llc |
| 3257B | C/1 Advisory reference — outside the item-of-supply concept Boyd Laconia Llc |
NSN 5999-01-198-3271 is a Heat Sink,electrical-Electronic, manufactured by Astronautics Corporation of America, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-198-3271 has 1 manufacturer part number on file: 18717-001 (Astronautics Corporation of America).
Key specifications for 18717-001: Overall Height: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE; Overall Diameter: 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-200,ALLOY 6063-T5 FED SPEC SINGLE MATERIAL RESPONSE. 5 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.