The Shaft,shouldered, cataloged under National Stock Number 3040-00-506-8536, 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 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-506-8536 |
| Primary Part Number | 7974518 |
| 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 | 40.0 MICROINCHES |
| Step Quantity | 2 |
| First End Diameter | 1.4990 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| Second End Diameter | 1.7716 INCHES MINIMUM AND 1.7719 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.771 INCHES NOMINAL IN |
| Second End Angle Between Keyways | 360.0 DEGREES NOMINAL |
| Second End Distance From Keyway Center to End | 14.020 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.3735 INCHES MINIMUM AND 0.3755 INCHES MAXIMUM IN |
| Second End Distance Between Keyway Centers | 12.314 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.209 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.187 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLAT KEYWAYS |
| Material | STEEL COMP 4140 |
| External Keyway Length | 1.375 INCHES NOMINAL FIRST END IN |
| External Keyway Length | 1.281 INCHES NOMINAL SECOND END IN |
| First End Keyway Width | 0.3735 INCHES MINIMUM AND 0.3755 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 |
NSN 3040-00-506-8536 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 3040-00-506-8536 has 2 manufacturer part numbers on file: M3001784 (Garwood/feller Inc Garwood Winch Div), 7974518 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7974518: Surface Finish: 40.0 MICROINCHES; Step Quantity: 2; First End Diameter: 1.4990 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Second End Diameter: 1.7716 INCHES MINIMUM AND 1.7719 INCHES MAXIMUM IN. 19 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.