The Shaft,shouldered, cataloged under National Stock Number 3040-00-431-8484, 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11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-431-8484 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 7 |
| First End Diameter | 1.3760 INCHES NOMINAL IN |
| Second End Diameter | 2.0000 INCHES MINIMUM AND 2.0010 INCHES MAXIMUM IN |
| Largest Step Diameter | 3.000 INCHES NOMINAL IN |
| First End External Thread Length | 0.800 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | AMS5643 FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | PLAIN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| LTCT21703 | D/9 Drawing number reference only U.S. Government activity |
| LTCT21703-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-431-8484 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-431-8484: Surface Finish: 125.0 MICROINCHES; Step Quantity: 7; First End Diameter: 1.3760 INCHES NOMINAL IN; Second End Diameter: 2.0000 INCHES MINIMUM AND 2.0010 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.