The Shaft,shouldered, cataloged under National Stock Number 3040-01-073-9904, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-073-9904 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Flat Length | 1.000 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 1.0000 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 1.000 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLATTED |
| Material | STEEL CORROSION RESISTING |
| Second End Flat Depth | 0.4500 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 |
|---|---|
| 8-52T-06 ITEM 8 | 5/9 Secondary reference Itw Heartland Components Inc |
| 8-52B-26-3 | 5/9 Secondary reference Itw Heartland Components Inc |
| 8-52-440 | 5/9 Secondary reference Itw Heartland Components Inc |
| 8-52B26-3 | 3/9 Design control — primary reference Illinois Tool Wks Inc Linac Div |
| 8-52-440 | C/1 Advisory reference — outside the item-of-supply concept Illinois Tool Wks Inc Linac Div |
| 8-52T06ITEM8 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
NSN 3040-01-073-9904 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-073-9904: Second End Flat Length: 1.000 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 1.0000 INCHES NOMINAL IN; Second End Diameter: 0.5000 INCHES NOMINAL IN. 10 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.