The Shaft,shouldered, cataloged under National Stock Number 3040-00-327-0740, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-327-0740 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 250.0 MICROINCHES |
| Second End External Thread Length | 0.570 INCHES NOMINAL IN |
| First End Pitch Diameter | 1.6875 INCHES NOMINAL IN |
| Step Quantity | 7 |
| First End Diameter | 1.7500 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.7500 INCHES NOMINAL IN |
| Second End Diameter | 0.8175 INCHES NOMINAL IN |
| Largest Step Diameter | 1.750 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.4810 INCHES NOMINAL IN |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 0.560 INCHES NOMINAL IN |
| First End Spline Quantity | 27 |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1600 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.570 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| First End Spline Minor Diameter | 1.5625 INCHES NOMINAL IN |
| Material | STEEL COMP 4340 |
| 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 |
|---|---|
| 9-62543 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-327-0740 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-327-0740: Surface Finish: 250.0 MICROINCHES; Second End External Thread Length: 0.570 INCHES NOMINAL IN; First End Pitch Diameter: 1.6875 INCHES NOMINAL IN; Step Quantity: 7. 20 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.