The Shaft,shouldered, cataloged under National Stock Number 3040-00-252-7828, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-252-7828 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 0.7440 INCHES MINIMUM AND 0.7460 INCHES MAXIMUM IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| Second End Step Length | 0.360 INCHES NOMINAL IN |
| Largest Step Diameter | 0.750 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | MIL-S-6758,CONDITION D-1 MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | HEXAGONAL |
| Material | STEEL COMP 4130 |
| Second End Width Across Flats | 0.250 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 |
|---|---|
| 216-29412-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-252-7828 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-252-7828: Surface Finish: 32.0 MICROINCHES; Step Quantity: 5; First End Diameter: 0.7440 INCHES MINIMUM AND 0.7460 INCHES MAXIMUM IN; Second End Diameter: 0.3750 INCHES NOMINAL IN. 12 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.