Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GB528AA10C13 found under Bearing Sleeve by Southerland Blue Print Co. The National Stock Number assigned to this part is 3120001828624, 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 GB528AA10C13.