The Shaft,shouldered, cataloged under National Stock Number 3040-01-022-7698, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-022-7698 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1060 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.3750 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.6390 INCHES NOMINAL IN |
| Second End Diameter | 0.7480 INCHES NOMINAL IN |
| Largest Step Diameter | 0.998 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Material Document and Classification | MIL-S-20166,TYPE A,GRADE M MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.188 INCHES NOMINAL IN |
| First End Spline Length | 1.000 INCHES NOMINAL IN |
| Second End Hole Depth | 0.375 INCHES NOMINAL IN |
| First End Spline Quantity | 10 |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| First End Spline Minor Diameter | 0.7480 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 75791-27X3PC8 | 5/2 Secondary reference U.S. Government activity |
| 73791-27X3PC8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-022-7698 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-022-7698: Second End Hole Diameter: 0.1060 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.3750 INCHES NOMINAL IN; First End Spline Major Diameter: 0.6390 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.