Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 520043 found under Microcircuit Digital by Sypris Electronics Llc. The National Stock Number assigned to this part is 5962005066451, 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 520043.