The Shaft,shouldered, cataloged under National Stock Number 3040-01-213-7741, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-213-7741 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.3800 INCHES NOMINAL IN |
| Second End Diameter | 0.4690 INCHES NOMINAL IN |
| Second End Step Length | 0.250 INCHES NOMINAL IN |
| First End External Thread Length | 0.750 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | QQ-S-763 CL 302 COND A COLD DRAWN FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | HEXAGONAL |
| Material | STEEL CORROSION RESISTING |
| Second End Width Across Flats | 0.625 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 |
|---|---|
| 114403 | 3/9 Design control — primary reference Crsi Inc Delaware Div General Dynamics Satcom Technologies Inc. |
| SM-B-423626 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-01-213-7741 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4920-01-538-9825. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-213-7741: Surface Finish: 125.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.3800 INCHES NOMINAL IN; Second End Diameter: 0.4690 INCHES NOMINAL IN. 12 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.