The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-440-8564, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-440-8564 |
| Primary Part Number | 6770768 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Disk Material | STEEL |
| Design Type | WET |
| Flexibility | RIGID |
| Disk Type | EXTERNAL LUG |
| Spline Major Diameter | 8.930 INCHES NOMINAL IN |
| 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 |
|---|---|
| 10875305 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 6770768 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 4667T2 | 5/9 Secondary reference Diamond Reo Truck Co |
| 897307R1 | 5/2 Secondary reference U.S. Government activity |
| 161737H1 | 5/9 Secondary reference Komatsu American Intl Co |
| 897307R1 | 5/9 Secondary reference U.S. Government activity |
| C0TP7B040D | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 6770768 | 5/9 Secondary reference General Motors Corp |
| 867588 | 5/9 Secondary reference White Motor Corp |
| C0TP7B040D | C/1 Advisory reference — outside the item-of-supply concept Ford Motor Company |
NSN 2520-00-440-8564 is a Disk,clutch,vehicular, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-440-8564 has 2 manufacturer part numbers on file: 10875305 (U S Army Tank Automotive Command Amsta-Im-Mm), 6770768 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6770768: Disk Material: STEEL; Design Type: WET; Flexibility: RIGID; Disk Type: EXTERNAL LUG. 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.