The Shaft,shouldered, cataloged under National Stock Number 3040-01-154-6863, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-154-6863 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 2 |
| First End Diameter | 3.5000 INCHES NOMINAL IN |
| Second End Diameter | 4.0680 INCHES NOMINAL IN |
| Largest Step Diameter | 4.500 INCHES NOMINAL IN |
| Second End Angle Between Keyways | 90.0 DEGREES NOMINAL |
| First End Style | PLAIN |
| Second End Keyway Width | 1.0040 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC ALL MATERIAL RESPONSES |
| Second End Keyway Depth | 1.000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLAT KEYWAYS |
| Material | NICKEL ALLOY |
| External Keyway Length | 5.005 INCHES NOMINAL SECOND END IN |
| 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 |
|---|---|
| 520-4674701 | D/9 Drawing number reference only Naval Sea Systems Command |
| 87611-1415 ITEM 7 | 3/2 Design control — primary reference U.S. Government activity |
| 520-4674701 ITEM 7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-154-6863 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-154-6863: Surface Finish: 63.0 MICROINCHES; Step Quantity: 2; First End Diameter: 3.5000 INCHES NOMINAL IN; Second End Diameter: 4.0680 INCHES NOMINAL IN. 14 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.