Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 22W747-25C found under Gear Helical by Aeroflex Wichita Inc. The National Stock Number assigned to this part is 3020009686412, 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 22W747-25C.