Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 055-0027R000 found under Bearing Ball Thrust by Williams Fire And Hazard Control Inc. The National Stock Number assigned to this part is 3110015937099, 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 055-0027R000.