The Shaft,shouldered, cataloged under National Stock Number 3040-01-153-1459, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-153-1459 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| First End Width Across Flats | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN |
| Step Quantity | 5 |
| First End Diameter | 0.8800 INCHES NOMINAL IN |
| First End Step Length | 1.870 INCHES NOMINAL IN |
| Second End Diameter | 0.7470 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.185 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN |
| Second End Distance From Keyway Center to End | 0.780 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN |
| First End Style | SQUARE (ROUND CORNERS) |
| Second End Keyway Width | 0.1880 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Keyway Depth | 0.112 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INDENTED FLAT KEYWAY |
| Material | NICKEL ALLOY 400 |
| External Keyway Length | 1.000 INCHES MINIMUM AND 1.010 INCHES MAXIMUM 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 |
| Reference | Meaning |
|---|---|
| 87832-1608 ITEM 9 | 3/2 Design control — primary reference U.S. Government activity |
| 709-4684879 | D/9 Drawing number reference only U.S. Government activity |
| 709-4684879 ITEM 9 | 5/2 Secondary reference U.S. Government activity |
| 87832-1608 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-153-1459 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-153-1461. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-153-1459: Surface Finish: 63.0 MICROINCHES; First End Width Across Flats: 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN; Step Quantity: 5; First End Diameter: 0.8800 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.