Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 401-154 found under Sealnonmetallic Channel by Environmental Technology Inc. The National Stock Number assigned to this part is 5330016976423, 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 401-154.