Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KJBB45000B-2 found under Bearing Ball Annular by Kamatics Corporation. The National Stock Number assigned to this part is 3110016151340, 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 KJBB45000B-2.