Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A5220TS found under Bearing Roller Cylindrical by Osgood Co The. The National Stock Number assigned to this part is 3110001556636, 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 A5220TS.