Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RDL 100 300U found under Dummy Load Electric by Smart Machines Inc. The National Stock Number assigned to this part is 5985013408927, 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 RDL 100 300U.