The Shaft,shouldered, cataloged under National Stock Number 3040-01-253-6736, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-253-6736 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 0.3000 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| First End Style | UNTHREADED CROSS DRILLED |
| Material Document and Classification | QQ-S-764 COND B FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1750 INCHES MINIMUM AND 0.1850 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| First End Hole Diameter | 0.1250 INCHES NOMINAL IN |
| Second End Groove Width | 0.1400 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.3000 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL COMP 303 |
| First End Distance From Hole Center to End | 0.141 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 |
|---|---|
| SM-C-752329-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-253-6736 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-253-6736: Second End External Thread Length: 0.3000 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Second End Diameter: 0.2500 INCHES NOMINAL IN. 15 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.