The Clutch and Shaft Friction, cataloged under National Stock Number 2520-00-984-5142, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-984-5142 |
| Item Name | Clutch and Shaft Friction |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| General Characteristics Item Description | 1 SHAFT; 1 SPUR GEAR; CLUTCH PLATE 16 EXTERNAL TEETH; CLUTCH PLATE 16 INTERNAL TEETH; 1 HOUSING |
| 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 |
|---|---|
| 0643561-4 | 5/9 Secondary reference U.S. Government activity |
| 643561 | 5/9 Secondary reference U.S. Government activity |
| X209721F | 3/9 Design control — primary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| 0643561 | 5/9 Secondary reference U.S. Government activity |
| 70643561 | 5/9 Secondary reference U.S. Government activity |
NSN 2520-00-984-5142 is a Clutch and Shaft Friction, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
Key specifications for 2520-00-984-5142: General Characteristics Item Description: 1 SHAFT; 1 SPUR GEAR; CLUTCH PLATE 16 EXTERNAL TEETH; CLUTCH PLATE 16 INTERNAL TEETH; 1 HOUSING. 1 specification is 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.