The Housing,flywheel, cataloged under National Stock Number 2520-01-668-7987, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2520-01-668-7987 |
| Item Name | Housing,flywheel |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| Vehicle Identification Designator | 13683870 |
| Vehicle Design Control Activity | 18876 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 9948.0015 | 3/1 Design control — primary reference U.S. Government activity |
NSN 2520-01-668-7987 is a Housing,flywheel, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2520-01-675-2065. Verify interchangeability with system specifications before substitution.
Key specifications for 2520-01-668-7987: Vehicle Identification Designator: 13683870; Vehicle Design Control Activity: 18876; End Item Identification: 4940-01-658-0431,TEST STATION ELECTRONIC-ELECTRONIC EQUIP. 2 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.