The Shaft,shouldered, cataloged under National Stock Number 3040-01-051-9856, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-051-9856 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Flat Length | 0.080 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 0.1870 INCHES NOMINAL IN |
| First End Flat Depth | 0.0780 INCHES NOMINAL IN |
| Second End Diameter | 0.1870 INCHES NOMINAL IN |
| Largest Step Diameter | 1.030 INCHES NOMINAL IN |
| First End Style | FLATTED |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLATTED AND INTERNALLY THREADED |
| First End Flat Length | 0.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Second End Internal Thread Length | 0.440 INCHES NOMINAL IN |
| Second End Flat Depth | 0.0225 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 |
|---|---|
| 0149-1-4039 | 3/9 Design control — primary reference Usacecom Intelligence Electronic Warfare Sensors Directorate |
NSN 3040-01-051-9856 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-051-9856: Second End Flat Length: 0.080 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 0.1870 INCHES NOMINAL IN; First End Flat Depth: 0.0780 INCHES NOMINAL IN. 13 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.