The Shaft,shouldered, cataloged under National Stock Number 3040-01-328-5519, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-328-5519 |
| Primary Part Number | 105704-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
| Status | ACTIVE |
| First End Width Across Flats | 0.311 INCHES NOMINAL IN |
| Second End Hole Diameter | 0.0650 INCHES NOMINAL IN |
| Second End External Thread Length | 0.437 INCHES NOMINAL IN |
| Step Quantity | 7 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| First End Step Length | 1.370 INCHES NOMINAL IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 0.900 INCHES NOMINAL IN |
| First End Style | HEXAGONAL |
| Second End Distance From Hole Center to End | 0.080 INCHES NOMINAL IN |
| Second End Hole Depth | 0.375 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | CROSS DRILLED AND EXTERNALLY THREADED |
| Material | STEEL |
| 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 |
|---|---|
| 105704-1 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 105704 | 5/1 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
| 105704-1 | 5/9 Secondary reference U.S. Government activity |
| 105704 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-01-328-5519 is a Shaft,shouldered, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-328-5519 has 1 manufacturer part number on file: 105704-1 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division).
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-533-7804, 6620-01-707-2681. Verify interchangeability with system specifications before substitution.
Key specifications for 105704-1: First End Width Across Flats: 0.311 INCHES NOMINAL IN; Second End Hole Diameter: 0.0650 INCHES NOMINAL IN; Second End External Thread Length: 0.437 INCHES NOMINAL IN; Step Quantity: 7. 14 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.