Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R5111422 found under Ball Bearing by Mtu America Incorporated. The National Stock Number assigned to this part is 3110014994321, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R5111422.