Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A6661 found under Cam Follower Needle Bearing by Accurate Bushing Company. The National Stock Number assigned to this part is 3110012164035, 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 A6661.