The Shaft,shouldered, cataloged under National Stock Number 3040-01-237-6290, 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18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-237-6290 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 1.3782 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.3720 INCHES NOMINAL IN |
| Second End Diameter | 1.3782 INCHES NOMINAL IN |
| Largest Step Diameter | 1.750 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 1.1745 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Second End Spline Major Diameter | 1.3720 INCHES NOMINAL IN |
| Material Document and Classification | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 1.000 INCHES NOMINAL IN |
| First End Spline Quantity | 10 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 10 |
| Second End Style | SPLINED (STRAIGHT) |
| First End Spline Minor Diameter | 1.1745 INCHES NOMINAL IN |
| Material | STEEL COMP 4140 |
| Second End Spline Length | 1.188 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 |
|---|---|
| SSN637-701-2159985 PIECE 4 | 5/2 Secondary reference U.S. Government activity |
| 77832-60X9 | D/9 Drawing number reference only U.S. Government activity |
| 77832-60X9 PIECE 4 | 3/2 Design control — primary reference U.S. Government activity |
| SSN637-701-2159985 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-237-6290 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-237-6290: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; First End Diameter: 1.3782 INCHES NOMINAL IN; First End Spline Major Diameter: 1.3720 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 3040-01-237-6290 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.