Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9631-1223 found under Microcircuit Linear by Atlantic Inertial Systems Inc. The National Stock Number assigned to this part is 5962010379357, 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 9631-1223.