The Shaft,shouldered, cataloged under National Stock Number 3040-01-104-1138, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-104-1138 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 0.0750 INCHES NOMINAL IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.265 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| First End Internal Thread Length | 0.250 INCHES NOMINAL IN |
| Second End Groove Diameter | 0.1540 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.125 INCHES NOMINAL IN |
| Second End Groove Width | 0.0940 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.411 INCHES NOMINAL IN |
| First End Groove Diameter | 0.1873 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND INTERNALLY THREADED |
| Material | STEEL COMP 303 |
| First End Groove Width | 0.0200 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 |
|---|---|
| SM-C-449064 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-104-1138 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-104-1138: Surface Finish: 32.0 MICROINCHES; Step Quantity: 6; First End Diameter: 0.0750 INCHES NOMINAL IN; Second End Diameter: 0.2500 INCHES NOMINAL IN. 16 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.