The Shaft,shouldered, cataloged under National Stock Number 3040-00-240-7525, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-240-7525 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 10 |
| First End Diameter | 0.3710 INCHES MINIMUM AND 0.3715 INCHES MAXIMUM IN |
| Second End Diameter | 0.6250 INCHES NOMINAL IN |
| Largest Step Diameter | 0.625 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.4959 INCHES MINIMUM AND 0.4964 INCHES MAXIMUM IN |
| First End Style | CIRCULAR GROOVED |
| Second End Spline Major Diameter | 0.6250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.071 INCHES NOMINAL IN |
| Second End Spline Quantity | 19 |
| Second End Pressure Angle | 20.0 DEGREES NOMINAL |
| First End Groove Diameter | 0.3500 INCHES MINIMUM AND 0.3540 INCHES MAXIMUM IN |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL COMP 4340 |
| Second End Pitch Diameter | 0.0030 INCHES NOMINAL IN |
| First End Groove Width | 0.0290 INCHES MINIMUM AND 0.0320 INCHES MAXIMUM IN |
| Second End Spline Length | 0.250 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 |
|---|---|
| 1005002407525 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 12K3097-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-240-7525 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-240-7525: Surface Finish: 125.0 MICROINCHES; Step Quantity: 10; First End Diameter: 0.3710 INCHES MINIMUM AND 0.3715 INCHES MAXIMUM IN; Second End Diameter: 0.6250 INCHES NOMINAL IN. 19 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 3040-00-240-7525 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.