The Shaft,shouldered, cataloged under National Stock Number 3040-00-419-0440, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hamilton Sundstrand Corporation Div Mission Systems. Government technical data includes 13 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. 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 | 3040-00-419-0440 |
| Primary Part Number | 341687 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Div Mission Systems |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN |
| Second End Diameter | 0.1500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.150 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.0838 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0100 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| 341687 PRIMARY | Hamilton Sundstrand Corporation Div Mission Systems (USA) |
NSN 3040-00-419-0440 is a Shaft,shouldered, manufactured by Hamilton Sundstrand Corporation Div Mission Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-419-0440 has 1 manufacturer part number on file: 341687 (Hamilton Sundstrand Corporation Div Mission Systems).
2 possible matches (shared part number, not a government interchangeability claim): 1560-01-074-1089, 5995-01-075-8768. Verify interchangeability with system specifications before substitution.
Key specifications for 341687: Surface Finish: 63.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN; Second End Diameter: 0.1500 INCHES NOMINAL IN. 13 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.