The Shaft,shouldered, cataloged under National Stock Number 3040-00-256-0175, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-256-0175 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Hole Diameter | 0.2030 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.2480 INCHES NOMINAL IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 0.375 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.0940 INCHES NOMINAL IN |
| Second End Distance From Hole Center to End | 0.4100 INCHES NOMINAL IN |
| Second End Hole Depth | 0.2810 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.2340 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY AND CROSS DRILLED HOLE |
| Material | STEEL COMP 303 |
| External Keyway Length | 0.5800 INCHES NOMINAL SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 305-537213 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-256-0175 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-256-0175: Second End Hole Diameter: 0.2030 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 0.2480 INCHES NOMINAL IN; Second End Diameter: 0.3750 INCHES NOMINAL IN. 14 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.
NSN 3040-00-256-0175 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.