Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L90BC5 found under Dummy Load Electrical by Premier Microwave Corp. The National Stock Number assigned to this part is 5985012223748, 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 L90BC5.