Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number YD2018-5004G1REV4 found under Waveguide Assembly by Raytheon Company. The National Stock Number assigned to this part is 5985005687685, 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 YD2018-5004G1REV4.