The Shaft,shouldered, cataloged under National Stock Number 3040-01-253-1997, 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 14 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 | 3040-01-253-1997 |
| Primary Part Number | 2531211 |
| 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 | 125.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.6166 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.6166 INCHES NOMINAL IN |
| Largest Step Diameter | 0.750 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND SPLINED (STRAIGHT) |
| First End Spline Length | 0.906 INCHES NOMINAL IN |
| First End Spline Quantity | 14 |
| End Similarity | IDENTICAL |
| First End Distance From End to Groove | 0.867 INCHES NOMINAL IN |
| First End Groove Diameter | 0.5880 INCHES NOMINAL IN |
| First End Spline Minor Diameter | 0.5293 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 |
| First End Groove Width | 0.0390 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 |
| Part Number | Manufacturer |
|---|---|
| 2531211 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-253-1997 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 3040-01-253-1997 has 1 manufacturer part number on file: 2531211 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2531211: Surface Finish: 125.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.6166 INCHES NOMINAL IN; First End Spline Major Diameter: 0.6166 INCHES NOMINAL IN. 14 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.