The Shaft,shouldered, cataloged under National Stock Number 3040-00-494-3068, 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 Solutions America Inc. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-494-3068 |
| Primary Part Number | 5189454 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Step Quantity | 4 |
| First End Diameter | 0.7530 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.312 INCHES NOMINAL IN |
| Second End Diameter | 0.8720 INCHES NOMINAL IN |
| Largest Step Diameter | 0.872 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.8340 INCHES NOMINAL IN |
| First End Style | WOODRUFF KEYWAY |
| Second End Spline Major Diameter | 0.8720 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 48 |
| Second End Style | SPLINED (STRAIGHT) |
| Material | STEEL |
| External Keyway Length | 0.500 INCHES NOMINAL FIRST END IN |
| Second End Spline Length | 0.750 INCHES NOMINAL IN |
| First End Keyway Width | 0.1250 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 |
|---|---|
| 5189454 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
NSN 3040-00-494-3068 is a Shaft,shouldered, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-494-3068 has 1 manufacturer part number on file: 5189454 (Rolls-Royce Solutions America Inc).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-200-2983. Verify interchangeability with system specifications before substitution.
Key specifications for 5189454: Step Quantity: 4; First End Diameter: 0.7530 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.312 INCHES NOMINAL IN; Second End Diameter: 0.8720 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.