Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UD4223 found under Microcircuit Linear by Satcon Electronics. The National Stock Number assigned to this part is 5962002341898, 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 UD4223.