Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4594739 found under Worm Assembly by Boeing Aircraft. The National Stock Number assigned to this part is 3020008842893, 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 4594739.