The Shaft,shouldered, cataloged under National Stock Number 3040-00-908-6995, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-908-6995 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 0.5800 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.5800 INCHES NOMINAL IN |
| Second End Diameter | 0.5800 INCHES NOMINAL IN |
| Largest Step Diameter | 1.064 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.5170 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Second End Spline Major Diameter | 0.5800 INCHES NOMINAL IN |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 2.250 INCHES NOMINAL IN |
| First End Spline Quantity | 18 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 18 |
| Second End Style | SPLINED (STRAIGHT) |
| First End Spline Minor Diameter | 0.5170 INCHES NOMINAL IN |
| Material | STEEL COMP 4340 |
| Second End Spline Length | 1.300 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MAG25779-3 | 3/9 Design control — primary reference Speco Corp |
NSN 3040-00-908-6995 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-908-6995: Surface Finish: 63.0 MICROINCHES; Step Quantity: 6; First End Diameter: 0.5800 INCHES NOMINAL IN; First End Spline Major Diameter: 0.5800 INCHES NOMINAL IN. 18 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.
NSN 3040-00-908-6995 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.