Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 63315ZZ2A found under Bearing Assembly by N T N Bearing Corp Of America. The National Stock Number assigned to this part is 3110013401703, 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 63315ZZ2A.