Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3131506-04538 found under Microcircuit Digita by Ocean Applied Research Corp. The National Stock Number assigned to this part is 5962012122152, 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 3131506-04538.