Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BB3-103 found under Bearing Ball Annular by Carter Motor Co. The National Stock Number assigned to this part is 3110001563398, 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 BB3-103.