Please fill out the form below for Horn Waveguide and get a quote for part number 137640B-6-1-6 by Advanced Technical Materials Inc with NSN 5985015797267 and FSC Name is 5985 Antennas Waveguides and Related Equipment, please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number 137640B-6-1-6. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.