The Shaft,shouldered, cataloged under National Stock Number 3040-01-509-9780, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. 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 | 3040-01-509-9780 |
| Primary Part Number | 7249551 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End External Thread Length | 0.838 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 1.5280 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 1.528 INCHES NOMINAL IN |
| First End Hole Depth | 1.528 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| End Similarity | NOT IDENTICAL |
| First End Hole Diameter | 0.2650 INCHES NOMINAL IN |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL |
| First End Distance From Hole Center to End | 1.050 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 |
| Part Number | Manufacturer |
|---|---|
| 7249551 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-509-9780 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-509-9780 has 1 manufacturer part number on file: 7249551 (Naval Sea Systems Command).
Key specifications for 7249551: Second End External Thread Length: 0.838 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 1.5280 INCHES NOMINAL IN; Second End Diameter: 0.5000 INCHES NOMINAL 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.