The Shaft,shouldered, cataloged under National Stock Number 3040-00-678-0417, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-678-0417 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 0.4380 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.7810 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.5620 INCHES NOMINAL IN |
| Second End Diameter | 0.6720 INCHES NOMINAL IN |
| Largest Step Diameter | 0.781 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 5.8750 INCHES NOMINAL IN |
| First End Style | TWO WOODRUFF KEYWAYS |
| Second End Keyway Width | 0.1880 INCHES NOMINAL IN |
| First End Distance Between Keyway Centers | 7.7500 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND WOODRUFF KEYWAY |
| Material | STEEL CORROSION RESISTING |
| External Keyway Length | 0.5310 INCHES NOMINAL FIRST END IN |
| External Keyway Length | 0.5310 INCHES NOMINAL SECOND END IN |
| First End Keyway Width | 0.1880 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 |
|---|---|
| 5T6ANC | 3/9 Design control — primary reference Aurora Pump a Unit of General Signal Corp |
| 5T6ANC | 5/9 Secondary reference General Signal Corp |
NSN 3040-00-678-0417 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-678-0417: Second End External Thread Length: 0.4380 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 0.7810 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.5620 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.