Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4155401-4 found under Ring Assembly Tail Pipe Adapter by Aerocomponents Ltd. The National Stock Number assigned to this part is 1560008908353, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4155401-4.