The Shaft,shouldered, cataloged under National Stock Number 3040-00-072-9548, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-072-9548 |
| Primary Part Number | 1668573 |
| 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 | 16.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 0.3095 INCHES NOMINAL IN |
| Second End Diameter | 0.4687 INCHES NOMINAL IN |
| Largest Step Diameter | 0.8125 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.4430 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0310 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 1.1884 INCHES NOMINAL IN |
| Second End Style | TWO CIRCULAR GROOVES |
| Material | STEEL CORROSION RESISTING |
| Second End Distance Between First and Second Groove Centers | 0.3899 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 |
NSN 3040-00-072-9548 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 3040-00-072-9548 has 2 manufacturer part numbers on file: 766729 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1668573 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1668573: Surface Finish: 16.0 MICROINCHES; Step Quantity: 6; First End Diameter: 0.3095 INCHES NOMINAL IN; Second End Diameter: 0.4687 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.