The Shaft,shouldered, cataloged under National Stock Number 3040-00-148-0303, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-148-0303 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.9839 INCHES MINIMUM AND 0.9842 INCHES MAXIMUM IN |
| Second End Diameter | 0.6250 INCHES NOMINAL IN |
| Largest Step Diameter | 1.139 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.589 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Second End Keyway Width | 0.1553 INCHES MINIMUM AND 0.1568 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.5880 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.090 INCHES NOMINAL IN |
| Second End Groove Width | 0.0550 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.097 INCHES NOMINAL IN |
| First End Groove Diameter | 0.9260 INCHES NOMINAL IN |
| Second End Style | WOODRUFF KEYWAY AND CIRCULAR GROOVED |
| Material | STEEL COMP 303 |
| First End Groove Width | 0.0620 INCHES NOMINAL IN |
| External Keyway Length | 0.625 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 |
|---|---|
| B15-4-15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-148-0303 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-148-0303: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.9839 INCHES MINIMUM AND 0.9842 INCHES MAXIMUM IN; Second End Diameter: 0.6250 INCHES NOMINAL IN. 19 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.