The Shaft,shouldered, cataloged under National Stock Number 3040-01-398-3449, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-398-3449 |
| Primary Part Number | 582-6404311-18 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End External Thread Length | 0.630 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 1.5746 INCHES MINIMUM AND 1.5750 INCHES MAXIMUM IN |
| Second End Diameter | 1.7715 INCHES MINIMUM AND 1.7719 INCHES MAXIMUM IN |
| Largest Step Diameter | 2.4970 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Groove Diameter | 1.6830 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1200 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 6.000 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED FLAT KEYWAY AND EXTERNALLY THREADED |
| Material | STEEL CORROSION RESISTING |
| External Keyway Length | 0.750 INCHES NOMINAL 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 |
|---|---|
| 582-6404311-18 PRIMARY | Naval Sea Systems Command (USA) |
| 211045276 | Naval Sea Systems Command (USA) |
NSN 3040-01-398-3449 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-398-3449 has 2 manufacturer part numbers on file: 582-6404311-18 (Naval Sea Systems Command), 211045276 (Naval Sea Systems Command).
Key specifications for 582-6404311-18: Second End External Thread Length: 0.630 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 1.5746 INCHES MINIMUM AND 1.5750 INCHES MAXIMUM IN; Second End Diameter: 1.7715 INCHES MINIMUM AND 1.7719 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.