The Shaft,shouldered, cataloged under National Stock Number 3040-01-085-8917, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-085-8917 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 11 |
| First End Diameter | 0.3120 INCHES NOMINAL IN |
| Second End Diameter | 0.9970 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN |
| Second End Step Length | 0.500 INCHES NOMINAL IN |
| Largest Step Diameter | 1.747 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Angle Between Flats | 180.0 DEGREES NOMINAL |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLATS |
| Material | COPPER OR NICKEL |
| 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 |
|---|---|
| 4775959-0001 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4687756 PIECE 90 | 5/2 Secondary reference U.S. Government activity |
| 845-4775959 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-085-8917 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-085-8917: Surface Finish: 32.0 MICROINCHES; Step Quantity: 11; First End Diameter: 0.3120 INCHES NOMINAL IN; Second End Diameter: 0.9970 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN. 11 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.