The Shaft,shouldered, cataloged under National Stock Number 3040-01-406-8803, 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 15 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 | 3040-01-406-8803 |
| Primary Part Number | 5266291 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Step Quantity | 14 |
| First End Diameter | 0.3800 INCHES NOMINAL IN |
| Second End Diameter | 0.8650 INCHES NOMINAL IN |
| Largest Step Diameter | 1.7000 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| Second End Groove Diameter | 0.6800 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 16 |
| First End Hole Diameter | 0.1270 INCHES NOMINAL IN |
| Second End Groove Width | 0.2110 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.8750 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND SPLINED (STRAIGHT) |
| Material | STEEL |
| First End Distance From Hole Center to End | 0.1400 INCHES NOMINAL IN |
| Second End Spline Length | 0.8750 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 |
|---|---|
| 5266291 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-406-8803 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-406-8803 has 1 manufacturer part number on file: 5266291 (Naval Sea Systems Command).
Key specifications for 5266291: Step Quantity: 14; First End Diameter: 0.3800 INCHES NOMINAL IN; Second End Diameter: 0.8650 INCHES NOMINAL IN; Largest Step Diameter: 1.7000 INCHES NOMINAL IN. 15 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.