Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D 500 0463 H44 R120 found under Dummy Load Electric by The Boeing Company. The National Stock Number assigned to this part is 5985016333943, 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 D 500 0463 H44 R120.