Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20WYS40-9 found under Yokeuniversal Jointvehicular by Fabco Automotive. The National Stock Number assigned to this part is 2520016980963, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20WYS40-9.