Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 89018164-1 found under Coupler Antenna by Drs Training And Control Systems Llc. The National Stock Number assigned to this part is 5985013761377, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 89018164-1.