The Shaft,shouldered, cataloged under National Stock Number 3040-01-261-2549, 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 | 3040-01-261-2549 |
| Primary Part Number | 2500992 |
| 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 External Thread Length | 0.605 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN |
| First End Pitch Diameter | 2.7500 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 2.8240 INCHES MINIMUM AND 2.8640 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 2.8077 INCHES MINIMUM AND 2.8127 INCHES MAXIMUM IN |
| Second End Diameter | 3.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 3.474 INCHES MINIMUM AND 3.479 INCHES MAXIMUM IN |
| First End Style | SPLINED (INVOLUTE) |
| Material Document and Classification | QQ-A-225,T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 2.8790 INCHES MINIMUM AND 2.8810 INCHES MAXIMUM IN |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 2.281 INCHES NOMINAL IN |
| First End Spline Quantity | 33 |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1560 INCHES MINIMUM AND 0.1700 INCHES MAXIMUM IN |
| Second End Distance From End to Groove | 0.273 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| First End Spline Minor Diameter | 2.6330 INCHES MINIMUM AND 2.6460 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 2500992 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-261-2549 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 3040-01-261-2549 has 1 manufacturer part number on file: 2500992 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2500992: Surface Finish: 63.0 MICROINCHES; Second End External Thread Length: 0.605 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN; First End Pitch Diameter: 2.7500 INCHES NOMINAL IN; Step Quantity: 8. 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.