Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H3218 found under Bearing Washer Thrust by Cleveland Trencher Co Inc. The National Stock Number assigned to this part is 3120006619604, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H3218.