The Universal Joint,vehicular, cataloged under National Stock Number 2520-01-181-8583, 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2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2520-01-181-8583 |
| Item Name | Universal Joint,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| Design Type | DOUBLE JOINT |
| Hub Bore Width Across Flats | 1.003 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| 87643-9806 REV B ITEM 7 | 3/2 Design control — primary reference U.S. Government activity |
| 87643-9806 | D/9 Drawing number reference only U.S. Government activity |
| 77-82-0113 REV B ITEM 7 | 5/2 Secondary reference U.S. Government activity |
| 501-4675794 | D/9 Drawing number reference only U.S. Government activity |
| 501-4675794 REV B ITEM 7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2520-01-181-8583 is a Universal Joint,vehicular, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-189-4694. Verify interchangeability with system specifications before substitution.
Key specifications for 2520-01-181-8583: Design Type: DOUBLE JOINT; Hub Bore Width Across Flats: 1.003 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Overall Length: 11.000 INCHES NOMINAL IN; Special Features: 2ND END,DISTANCE ACROSS THE FLATS 1.003 IN. IN. 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.