The Shaft,shouldered, cataloged under National Stock Number 3040-00-014-0309, 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 Jackson South. Government technical data includes 22 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 | 3040-00-014-0309 |
| Primary Part Number | 261834 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| First End Pitch Diameter | 0.8000 INCHES NOMINAL IN |
| Step Quantity | 6 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.8630 INCHES MINIMUM AND 0.8670 INCHES MAXIMUM IN |
| Second End Diameter | 0.50000 INCHES NOMINAL IN |
| Largest Step Diameter | 1.062 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.5260 INCHES MINIMUM AND 0.5360 INCHES MAXIMUM IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Spline Major Diameter | 0.6450 INCHES MINIMUM AND 0.6500 INCHES MAXIMUM IN |
| Material Document and Classification | VS-1-1-2-1,62983 MFR REF SINGLE MATERIAL RESPONSE |
| First End Pressure Angle | 30.0000 DEGREES NOMINAL |
| First End Spline Length | 0.775 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN |
| First End Spline Quantity | 12 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 16 |
| Second End Pressure Angle | 30.0000 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| First End Spline Minor Diameter | 0.7070 INCHES MINIMUM AND 0.7170 INCHES MAXIMUM IN |
| Material | COPPER |
| Second End Pitch Diameter | 0.60000 INCHES NOMINAL IN |
| Second End Spline Length | 0.875 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 |
| Part Number | Manufacturer |
|---|---|
| 261834 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 3040-00-014-0309 is a Shaft,shouldered, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-014-0309 has 1 manufacturer part number on file: 261834 (Eaton Aerospace, Llc Dba Jackson South).
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-612-7656, 1560-01-706-0268. Verify interchangeability with system specifications before substitution.
Key specifications for 261834: Surface Finish: 32.0 MICROINCHES; First End Pitch Diameter: 0.8000 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 0.5000 INCHES NOMINAL IN. 22 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.