Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TC55257BPL-85L found under Microcircuit Memory by Toshiba International Corporation. The National Stock Number assigned to this part is 5962015568057, 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 TC55257BPL-85L.