Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 89 163 086 found under Bearing Ball Annular by Radio Holland Group. The National Stock Number assigned to this part is 3110015115388, 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 89 163 086.