The Shaft,shouldered, cataloged under National Stock Number 3040-01-120-5488, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-120-5488 |
| Primary Part Number | 2594187 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End Hole Diameter | 0.1250 INCHES NOMINAL IN |
| First End Pitch Diameter | 0.4583 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.4516 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.4516 INCHES NOMINAL IN |
| Second End Diameter | 0.4050 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.624 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Groove Diameter | 0.3820 INCHES MINIMUM AND 0.3840 INCHES MAXIMUM IN |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Distance From Hole Center to End | 0.374 INCHES NOMINAL IN |
| First End Spline Length | 0.625 INCHES NOMINAL IN |
| First End Spline Quantity | 11 |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0280 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN |
| Second End Distance From End to Groove | 0.094 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Second End Style | CROSS DRILLED AND CIRCULAR GROOVED |
| First End Spline Minor Diameter | 0.4043 INCHES NOMINAL IN |
| Material | STEEL COMP 1042 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2594187 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-120-5488 is a Shaft,shouldered, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-120-5488 has 1 manufacturer part number on file: 2594187 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2594187: Surface Finish: 63.0 MICROINCHES; Second End Hole Diameter: 0.1250 INCHES NOMINAL IN; First End Pitch Diameter: 0.4583 INCHES NOMINAL IN; Step Quantity: 4. 20 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.