The Shaft,shouldered, cataloged under National Stock Number 3040-01-274-0454, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-274-0454 |
| Primary Part Number | 804-5184128 PIECE 59 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Step Quantity | 3 |
| Second End Diameter | 1.9380 INCHES NOMINAL IN |
| Largest Step Diameter | 1.938 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Distance From Hole Center to End | 1.500 INCHES NOMINAL IN |
| First End Spline Length | 2.5000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | THREADED CROSS DRILLED (THRU HOLE) |
| First End Spline Minor Diameter | 0.6250 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 804-5184128 PIECE 59 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 804-5184128 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-274-0454 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-274-0454 has 1 manufacturer part number on file: 804-5184128 PIECE 59 (Naval Sea Systems Command).
Key specifications for 804-5184128 PIECE 59: Step Quantity: 3; Second End Diameter: 1.9380 INCHES NOMINAL IN; Largest Step Diameter: 1.938 INCHES NOMINAL IN; First End Style: SPLINED (INVOLUTE). 10 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.