The Shaft,shouldered, cataloged under National Stock Number 3040-01-303-2494, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-303-2494 |
| Primary Part Number | 91741 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Step Quantity | 7 |
| First End Diameter | 38.2 MILLIMETERS NOMINAL MM |
| Second End Diameter | 45.0 MILLIMETERS NOMINAL MM |
| Largest Step Diameter | 45.0 MILLIMETERS NOMINAL MM |
| First End Style | CIRCULAR GROOVED |
| End Similarity | NOT IDENTICAL |
| Second End Style | THREE CIRCULAR GROOVES |
| 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 |
|---|---|
| 91741 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| LE38/33 | 5/9 Secondary reference Ulstein Bergen A/s |
| 91741 | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 91741 | 5/9 Secondary reference Ulstein Bergen A/s |
| 91741 | 5/9 Secondary reference Rolls-Royce Marine A/s Dep. Engines-Bergen |
NSN 3040-01-303-2494 is a Shaft,shouldered, manufactured by Rolls-Royce Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-303-2494 has 1 manufacturer part number on file: 91741 (Rolls-Royce Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 7045-01-444-2534, 5340-01-679-4078. Verify interchangeability with system specifications before substitution.
Key specifications for 91741: Step Quantity: 7; First End Diameter: 38.2 MILLIMETERS NOMINAL MM; Second End Diameter: 45.0 MILLIMETERS NOMINAL MM; Largest Step Diameter: 45.0 MILLIMETERS NOMINAL MM. 7 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.