The Shaft,shouldered, cataloged under National Stock Number 3040-01-429-8403, 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 15 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-429-8403 |
| Primary Part Number | 12412879 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Step Quantity | 5 |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 1.2500 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | ASTM A311, TYPE B, GRADE 1144 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 1.1740 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.1410 INCHES NOMINAL IN |
| Second End Groove Width | 0.1030 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.7800 INCHES NOMINAL IN |
| First End Groove Diameter | 1.1740 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL |
| First End Groove Width | 0.1030 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 |
|---|---|
| 12412879 | Amz Alabama Inc. (USA) |
| 12412879 | Landoll Company, Llc (USA) |
| 12412879 | Oshkosh Defense Llc (USA) |
| 12412879 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12412879 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
NSN 3040-01-429-8403 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 3040-01-429-8403 has 5 manufacturer part numbers on file: 12412879 (Amz Alabama Inc.), 12412879 (Landoll Company, Llc), 12412879 (Oshkosh Defense Llc), 12412879 (U S Army Tank Automotive Command Amsta-Im-Mm), 12412879 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).
Key specifications for 12412879: Step Quantity: 5; First End Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.2500 INCHES NOMINAL IN; Largest Step Diameter: 1.2500 INCHES NOMINAL IN. 15 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.