Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RM 1204 3 4 found under Packing Material by Rm Engineered Products Inc. The National Stock Number assigned to this part is 5330014595440, 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 RM 1204 3 4.