Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A2916-20-5A found under Coupler Directional by Technical Services Laboratory Inc. The National Stock Number assigned to this part is 5985011970548, 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 A2916-20-5A.