The Shaft,shouldered, cataloged under National Stock Number 3040-01-357-3464, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-357-3464 |
| Primary Part Number | 750409-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End Hole Diameter | 0.1250 INCHES MINIMUM AND 0.1290 INCHES MAXIMUM IN |
| Step Quantity | 2 |
| First End Diameter | 0.4950 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM IN |
| First End Flat Depth | 0.0610 INCHES NOMINAL IN |
| Second End Diameter | 0.7100 INCHES MINIMUM AND 0.7200 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.710 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN |
| First End Style | FLATTED AND INTERNALLY THREADED |
| First End Internal Thread Length | 0.6200 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-764,303S FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Slot Depth | 0.4000 INCHES NOMINAL IN |
| Second End Distance From Hole Center to End | 0.1500 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.1560 INCHES NOMINAL IN |
| Second End Style | CROSS DRILLED HOLE AND SLOTTED |
| First End Flat Length | 0.2500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 750409-1 PRIMARY | General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations (USA) |
| Reference | Meaning |
|---|---|
| 750409 | D/9 Drawing number reference only General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations |
NSN 3040-01-357-3464 is a Shaft,shouldered, manufactured by General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-357-3464 has 1 manufacturer part number on file: 750409-1 (General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-468-1372. Verify interchangeability with system specifications before substitution.
Key specifications for 750409-1: Surface Finish: 63.0 MICROINCHES; Second End Hole Diameter: 0.1250 INCHES MINIMUM AND 0.1290 INCHES MAXIMUM IN; Step Quantity: 2; First End Diameter: 0.4950 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM IN. 17 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.