Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K683397-15 found under Waveguide Assembly by Kaman Aerospace Corporation. The National Stock Number assigned to this part is 5985002297063, 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 K683397-15.