The Shaft,shouldered, cataloged under National Stock Number 3040-01-408-0189, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-408-0189 |
| Primary Part Number | 5210349 |
| 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 | 6.6890 INCHES MINIMUM AND 6.6900 INCHES MAXIMUM IN |
| Second End Diameter | 4.5655 INCHES MINIMUM AND 4.5664 INCHES MAXIMUM IN |
| Largest Step Diameter | 7.250 INCHES MAXIMUM IN |
| Second End Angle Between Keyways | 180.0 DEGREES NOMINAL |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 1.0000 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5000 MIL STD ALL MATERIAL RESPONSES |
| First End Keyway Depth | 1.3750 INCHES NOMINAL IN |
| Second End Keyway Depth | 1.000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLAT KEYWAYS |
| Material | STEEL |
| External Keyway Length | 4.6200 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 6.790 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 1.7500 INCHES MINIMUM AND 1.7520 INCHES MAXIMUM 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 |
|---|---|
| 5210349 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-408-0189 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-408-0189 has 1 manufacturer part number on file: 5210349 (Naval Sea Systems Command).
Key specifications for 5210349: Surface Finish: 63.0 MICROINCHES; Step Quantity: 6; First End Diameter: 6.6890 INCHES MINIMUM AND 6.6900 INCHES MAXIMUM IN; Second End Diameter: 4.5655 INCHES MINIMUM AND 4.5664 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.