The Shaft,shouldered, cataloged under National Stock Number 3040-01-149-6741, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-149-6741 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 4 |
| First End Diameter | 0.4993 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Step Length | 0.5006 INCHES NOMINAL IN |
| Largest Step Diameter | 0.936 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 0.1988 INCHES NOMINAL IN |
| Second End Tongue Width | 0.5000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Tongue Thickness | 0.1805 INCHES NOMINAL IN |
| Second End Style | TONGUE ROUNDED ENDS |
| 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 |
| Reference | Meaning |
|---|---|
| 292050J24 | 5/9 Secondary reference U.S. Government activity |
| 292050J24 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 292050J24 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 11V-102-S25 | 5/9 Secondary reference Lubriquip Inc Dba Lubriquip, Inc., a Unit of Idex |
| 465-060-230 | 5/9 Secondary reference Lubriquip Inc Dba Lubriquip, Inc., a Unit of Idex |
NSN 3040-01-149-6741 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-149-6741: Step Quantity: 4; First End Diameter: 0.4993 INCHES NOMINAL IN; Second End Diameter: 0.5000 INCHES NOMINAL IN; Second End Step Length: 0.5006 INCHES NOMINAL IN. 12 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.