Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U74F163 found under Microcircuit Digita by Drs Tactical Systems Ltd. The National Stock Number assigned to this part is 5962012130822, 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 U74F163.