Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J50-2 RIV 10FT CH found under Chainroller by Regal Beloit Corp. The National Stock Number assigned to this part is 3020016769114, 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 J50-2 RIV 10FT CH.