Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GB520CM624H found under Bearing Plain Self Aligning by New Hampshire Ball Bearings Co. The National Stock Number assigned to this part is 3120000311225, 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 GB520CM624H.