Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X28HC64 found under Microcircuit Memory by Xicor Inc. The National Stock Number assigned to this part is 5962014974863, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X28HC64.