The Shaft,shouldered, cataloged under National Stock Number 3040-01-341-4990, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-341-4990 |
| Primary Part Number | 6242829 |
| 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 | 3 |
| First End Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Second End Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Second End Step Length | 0.6200 INCHES NOMINAL IN |
| Largest Step Diameter | 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN |
| First End Style | UNTHREADED CROSS DRILLED |
| Second End Angle Between Flats | 180.0 DEGREES NOMINAL |
| Material Document and Classification | QQ-S-763 CL 316 COND A FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A276 TYPE 316 COND A ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| First End Hole Diameter | 0.2500 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM IN |
| Second End Style | TWO FLATS |
| Material | STEEL COMP 316 |
| First End Distance From Hole Center to End | 0.5000 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 |
|---|---|
| 6242799 PART 23 | Naval Sea Systems Command (USA) |
| 6242829 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-341-4990 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-341-4990 has 2 manufacturer part numbers on file: 6242799 PART 23 (Naval Sea Systems Command), 6242829 (Naval Sea Systems Command).
Key specifications for 6242829: Surface Finish: 63.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN; Second End Diameter: 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. 14 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.