Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D4949 found under Coupler Directional by Radite Microwave Co Inc. The National Stock Number assigned to this part is 5985008223388, 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 D4949.