The Shaft,shouldered, cataloged under National Stock Number 3040-01-234-5650, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-234-5650 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1710 INCHES MINIMUM AND 0.2030 INCHES MAXIMUM IN |
| Second End External Thread Length | 0.812 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Step Quantity | 1 |
| First End Diameter | 1.0000 INCHES NOMINAL IN |
| Second End Diameter | 0.6250 INCHES NOMINAL IN |
| Largest Step Diameter | 1.129 INCHES NOMINAL IN |
| First End External Thread Length | 0.940 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | ASTM-A-331 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.219 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Second End Hole Depth | 0.625 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | CROSS DRILLED AND EXTERNALLY THREADED |
| Material | STEEL COMP 4140 OR STEEL COMP 5140 OR STEEL COMP 8640 |
| 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 |
|---|---|
| 4213919 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-234-5650 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-234-5650: Second End Hole Diameter: 0.1710 INCHES MINIMUM AND 0.2030 INCHES MAXIMUM IN; Second End External Thread Length: 0.812 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN; Step Quantity: 1; First End Diameter: 1.0000 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.
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.