Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 303 11020 15 found under Switch Radio Freque by Amphenol Tcs. The National Stock Number assigned to this part is 5985011771616, 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 303 11020 15.