Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B2717+C0505 found under Gear Set Worm And W by F E L Corp. The National Stock Number assigned to this part is 3020013843805, 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 B2717+C0505.