The Shaft,shouldered, cataloged under National Stock Number 3040-01-222-8787, 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15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-222-8787 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 2.4920 INCHES NOMINAL IN |
| Second End Diameter | 1.9600 INCHES NOMINAL IN |
| Largest Step Diameter | 2.492 INCHES NOMINAL IN |
| Second End Angle Between Keyways | 135.0 DEGREES NOMINAL |
| Second End Distance From Keyway Center to End | 1.8125 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.5000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286 CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Keyway Depth | 0.2187 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO INDENTED FLAT KEYWAYS |
| Material | NICKEL ALLOY |
| External Keyway Length | 3.250 INCHES NOMINAL SECOND END 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 |
|---|---|
| SSN593-520-1862113 | D/9 Drawing number reference only U.S. Government activity |
| SSN612-520-1945961 | D/9 Drawing number reference only U.S. Government activity |
| SSN612-520-1045961 PIECE 16 | 3/2 Design control — primary reference U.S. Government activity |
| SSN593-520-1862113 PIECE 16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-222-8787 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-222-8787: Surface Finish: 63.0 MICROINCHES; Step Quantity: 3; First End Diameter: 2.4920 INCHES NOMINAL IN; Second End Diameter: 1.9600 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.