Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B01-0648 ITEM 9 found under Sprocket Wheel Segment Drive Uni by Wintech International Llc. The National Stock Number assigned to this part is 3020016076581, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B01-0648 ITEM 9.