Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RV-40 34J USED ON S N 55901-4 found under Universal Joint Nonvehicular by The Walter Machine Co Inc. The National Stock Number assigned to this part is 3010013482512, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RV-40 34J USED ON S N 55901-4.