Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17N-4-4561 found under Yoke Universal Joint Vehicular by Meritor Heavy Vehicle Systems Llc. The National Stock Number assigned to this part is 2520001557142, 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 17N-4-4561.