The Shaft,shouldered, cataloged under National Stock Number 3040-01-138-8431, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-138-8431 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End Hole Diameter | 0.1255 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN |
| First End Pitch Diameter | 0.6000 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.4800 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.6450 INCHES MINIMUM AND 0.6500 INCHES MAXIMUM IN |
| Second End Diameter | 0.4700 INCHES MINIMUM AND 0.4705 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.645 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN |
| First End Style | SPLINED (INVOLUTE) |
| Material Document and Classification | AMS6260 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Distance From Hole Center to End | 0.2000 INCHES NOMINAL IN |
| First End Spline Length | 0.7200 INCHES NOMINAL IN |
| First End Spline Quantity | 12 |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| First End Spline Minor Diameter | 0.4800 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 162C9321P02 | 3/2 Design control — primary reference U.S. Government activity |
| 162C9321 | D/9 Drawing number reference only General Electric Co Aviation Component Service Center |
| 162C9321P02 | 3/9 Design control — primary reference General Electric Co Aviation Component Service Center |
| 162C9321P02 | 5/9 Secondary reference General Electric Company |
NSN 3040-01-138-8431 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-138-8431: Surface Finish: 63.0 MICROINCHES; Second End Hole Diameter: 0.1255 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN; First End Pitch Diameter: 0.6000 INCHES NOMINAL IN; Step Quantity: 2. 18 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 3040-01-138-8431 has DEMIL Code Q. 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.