The Shaft,shouldered, cataloged under National Stock Number 3040-01-274-4789, 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12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-274-4789 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 3.0 MILLIMETERS NOMINAL MM |
| Second End Diameter | 3.0 MILLIMETERS NOMINAL MM |
| Largest Step Diameter | 7.0 MILLIMETERS NOMINAL MM |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 2.3 MILLIMETERS NOMINAL MM |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.64 MILLIMETERS NOMINAL MM |
| Second End Distance From End to Groove | 1.0 MILLIMETERS NOMINAL MM |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| A3030621 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-274-4789 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-274-4789: Step Quantity: 3; First End Diameter: 3.0 MILLIMETERS NOMINAL MM; Second End Diameter: 3.0 MILLIMETERS NOMINAL MM; Largest Step Diameter: 7.0 MILLIMETERS NOMINAL MM. 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.