Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MB444860 found under Pipe Plug by Precision Fittings Inc. The National Stock Number assigned to this part is 3930000665520, and the Federal Supply Class is 3930 Warehouse Trucks And Tractors Self-Propelled. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MB444860.