Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A16805 found under Gear Helical by Gables Engineering Inc. The National Stock Number assigned to this part is 3020012570277, 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 A16805.