The Shaft,shouldered, cataloged under National Stock Number 3040-01-129-3560, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-129-3560 |
| Primary Part Number | 65391-11668-102 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 4.5490 INCHES MINIMUM AND 4.5500 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 4.5490 INCHES MINIMUM AND 4.5500 INCHES MAXIMUM IN |
| Second End Diameter | 2.5490 INCHES MINIMUM AND 2.5500 INCHES MAXIMUM IN |
| Largest Step Diameter | 4.549 INCHES MINIMUM AND 4.550 INCHES MAXIMUM IN |
| Second End Spline Minor Diameter | 2.1450 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN |
| First End Style | SPLINED (STRAIGHT) |
| Criticality Code Justification | FEAT |
| Second End Spline Major Diameter | 2.5490 INCHES MINIMUM AND 2.5500 INCHES MAXIMUM IN |
| Material Document and Classification | AMS6265 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6260 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 0.700 INCHES NOMINAL IN |
| First End Spline Quantity | 44 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 24 |
| Second End Style | SPLINED (STRAIGHT) |
| First End Spline Minor Diameter | 4.1450 INCHES MINIMUM AND 4.1500 INCHES MAXIMUM IN |
| Material | STEEL |
| Second End Spline Length | 2.060 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 | F |
| Part Number | Manufacturer |
|---|---|
| 65391-11668-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3040-01-129-3560 is a Shaft,shouldered, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-129-3560 has 1 manufacturer part number on file: 65391-11668-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65391-11668-102: Surface Finish: 32.0 MICROINCHES; Step Quantity: 5; First End Diameter: 4.5490 INCHES MINIMUM AND 4.5500 INCHES MAXIMUM IN; First End Spline Major Diameter: 4.5490 INCHES MINIMUM AND 4.5500 INCHES MAXIMUM IN. 19 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.