Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EX2040RM66 found under Microcircuit Memory by Toshiba International Corporation. The National Stock Number assigned to this part is 5962014650362, 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 EX2040RM66.