The Shaft,shouldered, cataloged under National Stock Number 3040-01-203-5729, 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 16 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 | 3040-01-203-5729 |
| Primary Part Number | 12253612 |
| 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 External Thread Length | 0.875 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.7496 INCHES MINIMUM AND 0.7501 INCHES MAXIMUM IN |
| Second End Diameter | 0.8752 INCHES MINIMUM AND 0.8756 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| First End External Thread Length | 0.500 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Second End Groove Diameter | 0.7250 INCHES NOMINAL IN |
| End Similarity | IDENTICAL |
| First End Distance From End to Groove | 0.500 INCHES NOMINAL IN |
| Second End Groove Width | 0.9380 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.875 INCHES NOMINAL IN |
| First End Groove Diameter | 0.6250 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL COMP 1040 |
| First End Groove Width | 0.1250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12253612 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-01-203-5729 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 3040-01-203-5729 has 1 manufacturer part number on file: 12253612 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12253612: Second End External Thread Length: 0.875 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.7496 INCHES MINIMUM AND 0.7501 INCHES MAXIMUM IN; Second End Diameter: 0.8752 INCHES MINIMUM AND 0.8756 INCHES MAXIMUM IN. 16 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.
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.