Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM1012K2 found under Bearing Ball Annular by Aesys Technologies Llc. The National Stock Number assigned to this part is 3110001585981, 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 SM1012K2.