The Shaft,shouldered, cataloged under National Stock Number 3040-01-138-0799, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-138-0799 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 8.0 MICROINCHES |
| FSC Application Data | FUEL SYSTEM,TURBINE ENGINE,AIRCRAFT |
| First End Pitch Diameter | 0.5500 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 0.5470 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.6000 INCHES NOMINAL IN |
| Second End Diameter | 0.7660 INCHES NOMINAL IN |
| Largest Step Diameter | 0.980 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.6126 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Spline Major Diameter | 0.8500 INCHES NOMINAL IN |
| Material Document and Classification | AMS6470 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6471 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 0.812 INCHES NOMINAL IN |
| First End Spline Quantity | 11 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 16 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| First End Spline Minor Diameter | 0.4500 INCHES NOMINAL IN |
| Material | STEEL |
| Second End Pitch Diameter | 0.8000 INCHES NOMINAL IN |
| Second End Spline Length | 0.766 INCHES NOMINAL IN |
| 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 |
|---|---|
| 10106899 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5004363 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-138-0799 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-138-0799: Surface Finish: 8.0 MICROINCHES; FSC Application Data: FUEL SYSTEM,TURBINE ENGINE,AIRCRAFT; First End Pitch Diameter: 0.5500 INCHES NOMINAL IN; Step Quantity: 8. 23 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 3040-01-138-0799 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.