The Shaft,shouldered, cataloged under National Stock Number 3040-01-486-4251, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-486-4251 |
| Primary Part Number | 342-7067322-67 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End Hole Diameter | 0.4060 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 1.1250 INCHES NOMINAL IN |
| Second End Diameter | 0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.500 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.8339 INCHES MINIMUM AND 0.8340 INCHES MAXIMUM IN |
| First End External Thread Length | 2.1400 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Second End Spline Major Diameter | 0.9980 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 10 |
| Second End Style | CROSS DRILLED HOLE AND SPLINED (STRAIGHT) |
| Material | STEEL |
| Second End Spline Length | 1.2900 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 |
|---|---|
| 342-7067322-67 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7067322 | D/9 Drawing number reference only Naval Sea Systems Command |
| H643-7003-67 | 5/2 Secondary reference U.S. Government activity |
| H643-7003 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-486-4251 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-486-4251 has 1 manufacturer part number on file: 342-7067322-67 (Naval Sea Systems Command).
Key specifications for 342-7067322-67: Second End Hole Diameter: 0.4060 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 1.1250 INCHES NOMINAL IN; Second End Diameter: 0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN. 15 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.