Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DT 255 USM 161 found under Probe Waveguide by General Microwave Corporation. The National Stock Number assigned to this part is 5985009978341, 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 DT 255 USM 161.