The Shaft,shouldered, cataloged under National Stock Number 3040-00-757-2453, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-757-2453 |
| Primary Part Number | 334C811H01 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Second End External Thread Length | 4.500 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.2495 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 334C811H01 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 334C811H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-757-2453 is a Shaft,shouldered, manufactured by Westinghouse Electric Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-757-2453 has 1 manufacturer part number on file: 334C811H01 (Westinghouse Electric Corp).
Key specifications for 334C811H01: Second End External Thread Length: 4.500 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.2495 INCHES NOMINAL IN; Second End Diameter: 0.5000 INCHES NOMINAL IN. 9 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.