Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MF446C found under Coupling Clamp Pipe by Walter Motor Truck Co. The National Stock Number assigned to this part is 4730001046212, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MF446C.