Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2889721 found under Line Radio Frequency Transmissio by Raytheon Company. The National Stock Number assigned to this part is 5985010484686, 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 2889721.