Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AK5164B1 found under Coupling Waveguide by Jan Hardware Mfg Co Inc. The National Stock Number assigned to this part is 5985004845132, 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 AK5164B1.