Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B73168 found under Retainer Half by Fmc Technologies Inc. The National Stock Number assigned to this part is 2010000183453, and the Federal Supply Class is 2010 Ship And Boat Propulsion Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B73168.