The Shaft,straight, cataloged under National Stock Number 3040-01-185-1178, 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13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-185-1178 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| First End Pitch Diameter | 1.4375 INCHES NOMINAL IN |
| First End Diameter | 1.5000 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.5000 INCHES NOMINAL IN |
| Second End Diameter | 1.4995 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 3.500 INCHES NOMINAL IN |
| First End Spline Quantity | 23 |
| End Similarity | NOT IDENTICAL |
| Second End Style | PLAIN |
| First End Spline Minor Diameter | 1.2960 INCHES NOMINAL IN |
| Material | STEEL COMP 1045 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 8046259-01 | 3/2 Design control — primary reference U.S. Government activity |
| 8046259-01 | 5/9 Secondary reference Ase Texas Inc |
| 8046259 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-185-1178 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-185-1178: Surface Finish: 63.0 MICROINCHES; First End Pitch Diameter: 1.4375 INCHES NOMINAL IN; First End Diameter: 1.5000 INCHES NOMINAL IN; First End Spline Major Diameter: 1.5000 INCHES NOMINAL 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.
NSN 3040-01-185-1178 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.