Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 33D42500 found under Switch Waveguide by L3 Communications Corp. The National Stock Number assigned to this part is 5985001408853, 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 33D42500.