The Disk,clutch,vehicular, cataloged under National Stock Number 2520-01-078-3772, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | Alto Products Corp. Al (CAGE 1HQE5); Caterpillar Inc Div Caterpillar Defense (CAGE 11083) |
| Parameter | Value |
|---|---|
| NSN | 2520-01-078-3772 |
| Primary Part Number | 6Y7918 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 308734 | Alto Products Corp. Al (USA) |
| 6Y7918 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 7053218 | 5/9 Secondary reference Miba Gleitlager Ag |
| WPC-5689 | C/1 Advisory reference — outside the item-of-supply concept Cmbf Products Inc |
| WPC-5689 | 5/9 Secondary reference The S K Wellman Corp Dba Wellman Friction Products |
| 9N2671 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 7053218 | C/1 Advisory reference — outside the item-of-supply concept Miba Gleitlager Gmbh |
| WMPC05709 | 5/9 Secondary reference The S K Wellman Corp Dba Wellman Friction Products |
NSN 2520-01-078-3772 is a Disk,clutch,vehicular, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-078-3772 has 2 manufacturer part numbers on file: 308734 (Alto Products Corp. Al), 6Y7918 (Caterpillar Inc Div Caterpillar Defense).
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.