Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6138X1 found under Flange Waveguide by Omega Laboratories Inc. The National Stock Number assigned to this part is 5985011302180, 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 6138X1.