Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1168128-3 found under Retainer Piston Act by Boeing Company The. The National Stock Number assigned to this part is 1620011643844, and the Federal Supply Class is 1620 Aircraft Landing Gear Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1168128-3.