Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E99-288 found under Retainer And Rollers Bearing by Atlantic Industrial Technologies. The National Stock Number assigned to this part is 3110005897960, 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 E99-288.