The Shaft,shouldered, cataloged under National Stock Number 3040-01-252-6178, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-252-6178 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 0.5938 INCHES MINIMUM AND 0.6094 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 0.5938 INCHES MINIMUM AND 0.6094 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.5140 INCHES MINIMUM AND 0.5240 INCHES MAXIMUM IN |
| First End Style | SPLINED (STRAIGHT) |
| Material Document and Classification | AMS6475 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 0.4531 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM IN |
| First End Spline Quantity | 20 |
| End Similarity | IDENTICAL |
| First End Spline Minor Diameter | 0.5260 INCHES MINIMUM AND 0.5360 INCHES MAXIMUM 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 |
|---|---|
| 37C301961P102 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-252-6178 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-252-6178: Step Quantity: 2; First End Diameter: 0.5938 INCHES MINIMUM AND 0.6094 INCHES MAXIMUM IN; First End Spline Major Diameter: 0.5938 INCHES MINIMUM AND 0.6094 INCHES MAXIMUM IN; Largest Step Diameter: 0.5140 INCHES MINIMUM AND 0.5240 INCHES MAXIMUM IN. 11 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.