The Shaft,straight, cataloged under National Stock Number 3040-00-405-4129, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-405-4129 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Second End Groove Diameter | 0.8750 INCHES NOMINAL IN |
| First End Distance From End to Groove | 0.281 INCHES NOMINAL IN |
| Second End Groove Width | 1.0000 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 9.825 INCHES NOMINAL IN |
| First End Groove Diameter | 0.6740 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| First End Groove Width | 0.2800 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 |
|---|---|
| 722491 | 3/9 Design control — primary reference American Standard Inc Westinghouse Air Brake Co Div |
NSN 3040-00-405-4129 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-405-4129: First End Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.2500 INCHES NOMINAL IN; First End Style: CIRCULAR GROOVED; Overall Length: 19.750 INCHES NOMINAL IN. 10 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.