The Shaft,shouldered, cataloged under National Stock Number 3040-00-039-8541, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-039-8541 |
| Primary Part Number | 7982500 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1870 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN |
| Step Quantity | 4 |
| First End Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| First End Distance From Keyway Center to End | 0.375 INCHES NOMINAL IN |
| Second End Diameter | 0.5938 INCHES NOMINAL IN |
| Largest Step Diameter | 0.594 INCHES NOMINAL IN |
| First End Style | WOODRUFF KEYWAY |
| Material Document and Classification | MIL-S-11486 MIL SPEC ALL MATERIAL RESPONSES AND QQ-S-633 FED SPEC ALL MATERIAL RESPONSES |
| Second End Distance From Hole Center to End | 0.563 INCHES NOMINAL IN |
| Second End Hole Depth | 0.5938 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL COMP 1010 OR STEEL COMP 1020 |
| External Keyway Length | 0.466 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.0928 INCHES MINIMUM AND 0.0943 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 |
|---|---|
| 7982500 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-039-8541 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 3040-00-039-8541 has 1 manufacturer part number on file: 7982500 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7982500: Second End Hole Diameter: 0.1870 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN; Step Quantity: 4; First End Diameter: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN; First End Distance From Keyway Center to End: 0.375 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.