The Shaft,shouldered, cataloged under National Stock Number 3040-00-074-4240, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-074-4240 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Second End Flat Length | 0.359 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.0615 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Second End Diameter | 0.0900 INCHES MINIMUM AND 0.0910 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Criticality Code Justification | AMDL |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLATTED |
| Material | STEEL COMP 416 |
| Second End Flat Depth | 0.0120 INCHES MINIMUM AND 0.0130 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 57516500090 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-074-4240 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-074-4240: Surface Finish: 32.0 MICROINCHES; Second End Flat Length: 0.359 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.0615 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN. 13 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.