Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S82S181AF found under Microcircuit Memory by Philips Semiconductors Inc. The National Stock Number assigned to this part is 5962012471256, 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 S82S181AF.