The Shaft,shouldered, cataloged under National Stock Number 3040-00-560-8412, 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 23 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 | 3040-00-560-8412 |
| Primary Part Number | 5608412 |
| 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 |
| FSC Application Data | DIFFERNTIAL DRIVE,TANK FULL TRACKED |
| Step Quantity | 3 |
| First End Diameter | 2.3420 INCHES MINIMUM AND 2.3470 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 2.3470 INCHES NOMINAL IN |
| Second End Diameter | 2.3420 INCHES MINIMUM AND 2.3470 INCHES MAXIMUM IN |
| Largest Step Diameter | 2.625 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 2.0220 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Second End Spline Major Diameter | 2.3470 INCHES NOMINAL IN |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES |
| Second End Groove Diameter | 2.2180 INCHES NOMINAL IN |
| First End Spline Length | 3.250 INCHES NOMINAL IN |
| First End Spline Quantity | 10 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 10 |
| Second End Groove Width | 0.1090 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 3.589 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED, SPLINED (STRAIGHT) AND EXTERNALLY THREADED |
| First End Spline Minor Diameter | 2.0220 INCHES NOMINAL IN |
| Material | STEEL COMP 8642 OR STEEL COMP 8645 OR STEEL COMP 4150 |
| Second End Internal Thread Length | 0.875 INCHES NOMINAL IN |
| Second End Spline Length | 3.7500 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 |
|---|---|
| 5608412 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-560-8412 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 3040-00-560-8412 has 1 manufacturer part number on file: 5608412 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 5608412: Surface Finish: 125.0 MICROINCHES; FSC Application Data: DIFFERNTIAL DRIVE,TANK FULL TRACKED; Step Quantity: 3; First End Diameter: 2.3420 INCHES MINIMUM AND 2.3470 INCHES MAXIMUM IN. 23 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.