The Shaft,shouldered, cataloged under National Stock Number 3040-00-498-6071, 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12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-498-6071 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 0.620 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.4980 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.498 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN |
| First End Style | FLAT KEYWAY |
| First End Keyway Depth | 0.125 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| External Keyway Length | 0.500 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1560 INCHES MINIMUM AND 0.1610 INCHES MAXIMUM 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 |
|---|---|
| 202331-1 | 3/9 Design control — primary reference Saga Engineering Corp |
| 202331-1 | 5/9 Secondary reference Data Products Corp |
NSN 3040-00-498-6071 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-498-6071: Second End External Thread Length: 0.620 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 0.4980 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN; Second End Diameter: 0.2500 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.