Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 134B407DD1 found under Seal Labyrinth Stea by General Electric Co. The National Stock Number assigned to this part is 5330002870169, 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 134B407DD1.