Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AM27S291A BLA found under Microcircuit Memory by Rochester Electronicsllc. The National Stock Number assigned to this part is 5962013080491, 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 AM27S291A BLA.