Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD550UD found under Microcircuit Linear by Analog Devices Inc. The National Stock Number assigned to this part is 5962010394749, 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 AD550UD.