Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4014398-42 found under Microcircuit Memory by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5962010794942, 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 4014398-42.