The Shaft,shouldered, cataloged under National Stock Number 3040-01-494-2724, 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 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-494-2724 |
| Primary Part Number | 752-7068477-63 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 4.1130 INCHES MINIMUM AND 4.1150 INCHES MAXIMUM IN |
| Second End Diameter | 1.9686 INCHES MINIMUM AND 1.9688 INCHES MAXIMUM IN |
| Largest Step Diameter | 5.125 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Second End Keyway Width | 0.3130 INCHES MINIMUM AND 0.3290 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-21952,GRADE HY-80,TYPE B MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Keyway Depth | 0.094 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.107 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| First End Groove Diameter | 3.8730 INCHES MINIMUM AND 3.8750 INCHES MAXIMUM IN |
| Second End Style | FLAT KEYWAYS AND INTERNALLY THREADED |
| Material | STEEL |
| First End Groove Width | 0.1880 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| Second End Internal Thread Length | 1.030 INCHES NOMINAL IN |
| External Keyway Length | 1.616 INCHES MINIMUM AND 1.618 INCHES MAXIMUM SECOND END 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 |
|---|---|
| 752-7068477-63 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7068477 | D/9 Drawing number reference only Naval Sea Systems Command |
| H832-1662-63 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-494-2724 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-494-2724 has 1 manufacturer part number on file: 752-7068477-63 (Naval Sea Systems Command).
Key specifications for 752-7068477-63: Surface Finish: 63.0 MICROINCHES; Step Quantity: 6; First End Diameter: 4.1130 INCHES MINIMUM AND 4.1150 INCHES MAXIMUM IN; Second End Diameter: 1.9686 INCHES MINIMUM AND 1.9688 INCHES MAXIMUM IN. 17 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.