Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 134C974H01 found under Flange Waveguide by 3M Company. The National Stock Number assigned to this part is 5985011780273, 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 134C974H01.