The Shaft,shouldered, cataloged under National Stock Number 3040-01-182-4353, 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 17 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 | 3040-01-182-4353 |
| Primary Part Number | 12321243 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End External Thread Length | 0.320 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Diameter | 0.1900 INCHES NOMINAL IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | ASTM A582,TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.080 INCHES NOMINAL IN |
| Second End Groove Width | 0.0600 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.700 INCHES NOMINAL IN |
| First End Groove Diameter | 0.2485 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL CORROSION RESISTING |
| First End Groove Width | 0.2501 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 |
|---|---|
| 12321243 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-01-182-4353 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 3040-01-182-4353 has 1 manufacturer part number on file: 12321243 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12321243: Surface Finish: 63.0 MICROINCHES; Second End External Thread Length: 0.320 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 0.5000 INCHES NOMINAL IN. 17 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.