The Shaft,shouldered, cataloged under National Stock Number 3040-01-220-6702, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-220-6702 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 4 |
| First End Diameter | 0.9980 INCHES NOMINAL IN |
| Second End Diameter | 1.4970 INCHES NOMINAL IN |
| Second End Step Length | 1.375 INCHES NOMINAL IN |
| Largest Step Diameter | 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | SQUARE (ROUND CORNERS) |
| Material | COPPER ALLOY |
| Second End Width Across Flats | 1.063 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 |
|---|---|
| SSN593-520-1862096 | D/9 Drawing number reference only U.S. Government activity |
| SSN593-520-1862096 PIECE 11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-220-6702 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3950-01-220-6744, 3040-01-220-6865. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-220-6702: Step Quantity: 4; First End Diameter: 0.9980 INCHES NOMINAL IN; Second End Diameter: 1.4970 INCHES NOMINAL IN; Second End Step Length: 1.375 INCHES NOMINAL IN. 10 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.