The Shaft,shouldered, cataloged under National Stock Number 3040-00-601-3970, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 12 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-601-3970 |
| Primary Part Number | 6013970 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| First End Width Across Flats | 0.6200 INCHES NOMINAL IN |
| Step Quantity | 7 |
| First End Diameter | 0.6200 INCHES NOMINAL IN |
| First End Step Length | 1.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 0.686 INCHES NOMINAL IN |
| First End Hole Depth | 0.499 INCHES NOMINAL IN |
| First End Style | SQUARE AND CROSS DRILLED HOLE |
| Material Document and Classification | QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | IDENTICAL |
| First End Hole Diameter | 0.1360 INCHES NOMINAL IN |
| Material | STEEL |
| First End Distance From Hole Center to End | 0.375 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 |
|---|---|
| 6013970 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3040-00-601-3970 is a Shaft,shouldered, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-601-3970 has 1 manufacturer part number on file: 6013970 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-475-3179. Verify interchangeability with system specifications before substitution.
Key specifications for 6013970: First End Width Across Flats: 0.6200 INCHES NOMINAL IN; Step Quantity: 7; First End Diameter: 0.6200 INCHES NOMINAL IN; First End Step Length: 1.3750 INCHES NOMINAL IN. 12 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.