Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6280 found under Cone And Rollers Tapered Roller by Koehring Co. The National Stock Number assigned to this part is 3110001003087, 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 6280.