Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MF340D found under Universal Joint Veh by Walter Motor Truck Co. The National Stock Number assigned to this part is 2520007925203, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MF340D.