The Shaft,shouldered, cataloged under National Stock Number 3040-01-108-4911, 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 | 3040-01-108-4911 |
| Primary Part Number | 12292671 |
| 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 | 125.0 MICROINCHES |
| Step Quantity | 10 |
| First End Diameter | 0.4095 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Second End Diameter | 0.6692 INCHES MINIMUM AND 0.6695 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.6692 INCHES MINIMUM AND 0.6695 INCHES MAXIMUM IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | AISI4140 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.6287 INCHES MINIMUM AND 0.6293 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.620 INCHES NOMINAL IN |
| Second End Groove Width | 0.0500 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.125 INCHES NOMINAL IN |
| First End Groove Diameter | 0.4960 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN |
| Second End Style | TWO CIRCULAR GROOVES |
| Material | STEEL COMP 4140 |
| First End Groove Width | 0.2960 INCHES MINIMUM AND 0.2970 INCHES MAXIMUM IN |
| Second End Distance Between First and Second Groove Centers | 0.716 INCHES MINIMUM AND 0.717 INCHES MAXIMUM 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 |
|---|---|
| 12292671 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-01-108-4911 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 3040-01-108-4911 has 1 manufacturer part number on file: 12292671 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12292671: Surface Finish: 125.0 MICROINCHES; Step Quantity: 10; First End Diameter: 0.4095 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN; Second End Diameter: 0.6692 INCHES MINIMUM AND 0.6695 INCHES MAXIMUM 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.