The Shaft,shouldered, cataloged under National Stock Number 3040-01-325-8304, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 11 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-325-8304 |
| Primary Part Number | 12295288 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Second End Flat Length | 2.560 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 2.6500 INCHES NOMINAL IN |
| Second End Diameter | 2.6950 INCHES NOMINAL IN |
| Largest Step Diameter | 4.163 INCHES NOMINAL IN |
| First End External Thread Length | 3.500 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLATTED |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 |
| Second End Flat Depth | 0.2000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12295288 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-01-325-8304 is a Shaft,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-325-8304 has 1 manufacturer part number on file: 12295288 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12295288: Second End Flat Length: 2.560 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 2.6500 INCHES NOMINAL IN; Second End Diameter: 2.6950 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3040-01-325-8304 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.