Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A59640-816JABT found under Bearing Ball Annular by Federal Commercial Item Description. The National Stock Number assigned to this part is 3110005404582, 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 A59640-816JABT.