Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UPC311C found under Microcircuit Digita by Nec Electronics U S A Inc. The National Stock Number assigned to this part is 5962013111915, 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 UPC311C.