The Shaft,shouldered, cataloged under National Stock Number 3040-01-289-2827, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-289-2827 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 7 |
| First End Diameter | 0.7500 INCHES NOMINAL IN |
| Second End Diameter | 0.5002 INCHES NOMINAL IN |
| Largest Step Diameter | 0.7500 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Material Document and Classification | QQ-S-634 FED SPEC ALL MATERIAL RESPONSES |
| Second End Groove Diameter | 0.4680 INCHES NOMINAL IN |
| First End Keyway Depth | 0.1100 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0390 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.1310 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL COMP 1040 |
| External Keyway Length | 1.6250 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1877 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 |
| Reference | Meaning |
|---|---|
| 68C33240 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-289-2827 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-289-2827: Surface Finish: 32.0 MICROINCHES; Step Quantity: 7; First End Diameter: 0.7500 INCHES NOMINAL IN; Second End Diameter: 0.5002 INCHES NOMINAL IN. 16 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.