The Shaft,shouldered, cataloged under National Stock Number 3040-01-138-0800, 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 12 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 | 3040-01-138-0800 |
| Primary Part Number | 64351-11105-107 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 90.0 MICROINCHES |
| Second End External Thread Length | 0.500 INCHES NOMINAL IN |
| Step Quantity | 10 |
| First End Diameter | 5.1250 INCHES MINIMUM AND 5.1260 INCHES MAXIMUM IN |
| Second End Diameter | 2.8750 INCHES NOMINAL IN |
| Largest Step Diameter | 5.125 INCHES MINIMUM AND 5.126 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS6265 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL 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 | F |
| Part Number | Manufacturer |
|---|---|
| 64351-11105-107 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3040-01-138-0800 is a Shaft,shouldered, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-138-0800 has 1 manufacturer part number on file: 64351-11105-107 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 64351-11105-107: Surface Finish: 90.0 MICROINCHES; Second End External Thread Length: 0.500 INCHES NOMINAL IN; Step Quantity: 10; First End Diameter: 5.1250 INCHES MINIMUM AND 5.1260 INCHES MAXIMUM IN. 12 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.