Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XB5167 found under Gear by Twin Disc Incorporated. The National Stock Number assigned to this part is 3020010272550, 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 XB5167.