The Piston,clutch Shaft Assembly, cataloged under National Stock Number 2520-01-296-8460, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-296-8460 |
| Primary Part Number | 12446533 |
| Item Name | Piston,clutch Shaft Assembly |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | PISTON,CLUTCH SHAFT:ROUND CAST IRON ITEM WEBBED WITH CENTER APPERATURE;CENTER APPERATURE 2.504 IN. MIN,2.507 IN.MAX.;OS DIA.9.243 IN.MIN.,9.246 IN.MAX;0.747 IN.MIN.,0.753 IN.MAX.THK;USEON THIRD RANGE CLUTCH,MODEL HMPT 500-3TRANSMISSION 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 |
|---|---|
| 12446533 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12376124 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12364274 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2520-01-296-8460 is a Piston,clutch Shaft Assembly, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-296-8460 has 1 manufacturer part number on file: 12446533 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12446533: General Characteristics Item Description: PISTON,CLUTCH SHAFT:ROUND CAST IRON ITEM WEBBED WITH CENTER APPERATURE;CENTER APPERATURE 2.504 IN. MIN,2.507 IN.MAX.;OS DIA.9.243 IN.MIN.,9.246 IN.MAX;0.747 IN.MIN.,0.753 IN.MAX.THK;USEON THIRD RANGE CLUTCH,MODEL HMPT 500-3TRANSMISSION IN; End Item Identification: 2520012746500. 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.