The Shaft,shouldered, cataloged under National Stock Number 3040-00-596-3413, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-596-3413 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 1.3750 INCHES NOMINAL IN |
| Second End Diameter | 2.4800 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM IN |
| Second End Step Length | 0.902 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN |
| Largest Step Diameter | 2.480 INCHES MINIMUM AND 2.598 INCHES MAXIMUM IN |
| First End External Thread Length | 1.620 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | HEXAGONAL |
| Material | STEEL |
| Second End Width Across Flats | 2.175 INCHES MINIMUM AND 2.250 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 |
|---|---|
| 13218E4131 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-596-3413 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-596-3413: Step Quantity: 3; First End Diameter: 1.3750 INCHES NOMINAL IN; Second End Diameter: 2.4800 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM IN; Second End Step Length: 0.902 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN. 11 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.