The Shaft,shouldered, cataloged under National Stock Number 3040-01-420-1165, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-420-1165 |
| Primary Part Number | 566-6404314-10 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Second End Diameter | 0.2470 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.0000 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | A193 GR B7 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.2285 INCHES MINIMUM AND 0.2315 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN |
| Second End Distance From End to Groove | 0.1850 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 566-6404314-10 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF-2018-62 FN 10 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6404314 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-420-1165 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-420-1165 has 1 manufacturer part number on file: 566-6404314-10 (Naval Sea Systems Command).
Key specifications for 566-6404314-10: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN; Second End Diameter: 0.2470 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN. 13 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.