Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M04-0003 found under Felt Mechanical Pre by Ward Leonard Electric Company Inc. The National Stock Number assigned to this part is 5330008387877, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M04-0003.