The Shaft,shouldered, cataloged under National Stock Number 3040-01-221-4332, 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11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-221-4332 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 1 |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.938 INCHES NOMINAL IN |
| Largest Step Diameter | 1.312 INCHES NOMINAL IN |
| First End Style | INDENTED FLAT KEYWAY |
| Material Document and Classification | QQ-N-281,CL A,HR FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.156 INCHES NOMINAL IN |
| End Similarity | IDENTICAL |
| Material | NICKEL ALLOY |
| External Keyway Length | 1.750 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.3750 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 |
|---|---|
| 1945970 PC 9 | 3/2 Design control — primary reference U.S. Government activity |
| SSN612-520-1945 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3040-01-221-4332 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-221-4332: Step Quantity: 1; First End Diameter: 1.2500 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.938 INCHES NOMINAL IN; Largest Step Diameter: 1.312 INCHES NOMINAL 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.