The Shaft,shouldered, cataloged under National Stock Number 3040-00-510-7004, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-510-7004 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 12.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 0.3125 INCHES NOMINAL IN |
| Second End Diameter | 1.2870 INCHES NOMINAL IN |
| Largest Step Diameter | 1.287 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 1.1270 INCHES NOMINAL IN |
| First End External Thread Length | 0.438 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Second End Spline Major Diameter | 1.2870 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-687 FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 24 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL COMP 6150 |
| Second End Pitch Diameter | 1.2000 INCHES NOMINAL IN |
| Second End Spline Length | 1.385 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 |
| Reference | Meaning |
|---|---|
| G29-338 | 3/9 Design control — primary reference Lucas Aerospace Power Equipment Corporation |
| G29-338 | C/1 Advisory reference — outside the item-of-supply concept Safran Power Usa Llc |
NSN 3040-00-510-7004 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-510-7004: Surface Finish: 12.0 MICROINCHES; Step Quantity: 6; First End Diameter: 0.3125 INCHES NOMINAL IN; Second End Diameter: 1.2870 INCHES NOMINAL IN. 17 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.