The Shaft,shouldered, cataloged under National Stock Number 3040-01-445-4792, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-445-4792 |
| Primary Part Number | 211080231 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| First End Pitch Diameter | 2.5000 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 2.6230 INCHES NOMINAL IN |
| First End Spline Major Diameter | 2.6230 INCHES NOMINAL IN |
| Second End Diameter | 2.6230 INCHES NOMINAL IN |
| Largest Step Diameter | 2.8750 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 2.2510 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Spline Major Diameter | 2.6230 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286, FORM 2, COND ANL FED SPEC SINGLE MATERIAL RESPONSE |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 5.8300 INCHES NOMINAL IN |
| First End Spline Quantity | 20 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 20 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| First End Spline Minor Diameter | 2.2510 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Second End Pitch Diameter | 2.5000 INCHES NOMINAL IN |
| Second End Spline Length | 6.0100 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 |
|---|---|
| 751-6408594 FIND 13 | Naval Sea Systems Command (USA) |
| 211080231 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6408594 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF2230 3171 FIND 13 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-445-4792 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-445-4792 has 2 manufacturer part numbers on file: 751-6408594 FIND 13 (Naval Sea Systems Command), 211080231 (Naval Sea Systems Command).
Key specifications for 211080231: First End Pitch Diameter: 2.5000 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 2.6230 INCHES NOMINAL IN; First End Spline Major Diameter: 2.6230 INCHES NOMINAL IN. 21 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.