The Shaft,shouldered, cataloged under National Stock Number 3040-01-365-5261, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 12 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 | 3040-01-365-5261 |
| Primary Part Number | 3145AS125 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 0.2500 INCHES MAXIMUM IN |
| Second End Diameter | 0.8700 INCHES MAXIMUM IN |
| Second End Step Length | 0.3800 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.8700 INCHES MAXIMUM IN |
| First End External Thread Length | 0.3800 INCHES MAXIMUM IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | MIL-S-6758 MIL SPEC ALL MATERIAL RESPONSES |
| End Similarity | NOT IDENTICAL |
| Second End Style | HEXAGONAL |
| Material | STEEL COMP 4130 |
| Second End Width Across Flats | 0.7500 INCHES MAXIMUM 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 |
|---|---|
| 3145AS125 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 3040-01-365-5261 is a Shaft,shouldered, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-365-5261 has 1 manufacturer part number on file: 3145AS125 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 3145AS125: Step Quantity: 2; First End Diameter: 0.2500 INCHES MAXIMUM IN; Second End Diameter: 0.8700 INCHES MAXIMUM IN; Second End Step Length: 0.3800 INCHES MAXIMUM IN. 12 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.