Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MR67A found under Parts Kit Universal Joint by Zeller Corp The. The National Stock Number assigned to this part is 2520004941151, 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 MR67A.