The Shaft,shouldered, cataloged under National Stock Number 3040-01-249-3382, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-249-3382 |
| Primary Part Number | 12354712 |
| 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 Hole Diameter | 0.2080 INCHES NOMINAL IN |
| Step Quantity | 6 |
| First End Diameter | 0.7500 INCHES NOMINAL IN |
| Second End Diameter | 1.1245 INCHES NOMINAL IN |
| Largest Step Diameter | 2.000 INCHES NOMINAL IN |
| First End External Thread Length | 1.130 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 1.730 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Second End Keyway Width | 0.3121 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES |
| Second End Distance From Hole Center to End | 0.540 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | WOODRUFF KEYWAY AND CROSS DRILLED |
| Material | STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OR STEEL COMP 4150 OR STEEL COMP 4340 |
| External Keyway Length | 0.5675 INCHES NOMINAL SECOND END 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 |
|---|---|
| 12354712 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12354712 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12354712 | 3/2 Design control — primary reference U.S. Government activity |
| 12354712 | 8/1 NATO reproduction reference Fnss Savunma Sistemleri Anonim Sirketi |
NSN 3040-01-249-3382 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 3040-01-249-3382 has 2 manufacturer part numbers on file: 12354712 (U S Army Tank Automotive Command Amsta-Im-Mm), 12354712 (Amz Alabama Inc.).
Key specifications for 12354712: Surface Finish: 63.0 MICROINCHES; Second End Hole Diameter: 0.2080 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 0.7500 INCHES NOMINAL 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.