The Shaft,shouldered, cataloged under National Stock Number 3040-01-127-6743, 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 16 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 | 3040-01-127-6743 |
| Primary Part Number | 522497 |
| 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 | 32.0 MICROINCHES |
| Second End External Thread Length | 0.562 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 0.7873 INCHES MINIMUM AND 0.7875 INCHES MAXIMUM IN |
| Second End Diameter | 0.4690 INCHES NOMINAL IN |
| Largest Step Diameter | 0.995 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| First End Style | CIRCULAR GROOVED |
| Second End Keyway Width | 0.1250 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.062 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.125 INCHES NOMINAL IN |
| First End Groove Diameter | 0.7270 INCHES MINIMUM AND 0.7330 INCHES MAXIMUM IN |
| Second End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Material | STEEL COMP 4340 |
| First End Groove Width | 0.0700 INCHES MINIMUM AND 0.0730 INCHES MAXIMUM IN |
| External Keyway Length | 0.562 INCHES NOMINAL SECOND END 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 |
|---|---|
| 522497 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-127-6743 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 3040-01-127-6743 has 1 manufacturer part number on file: 522497 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 522497: Surface Finish: 32.0 MICROINCHES; Second End External Thread Length: 0.562 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 0.7873 INCHES MINIMUM AND 0.7875 INCHES MAXIMUM IN. 16 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.