Please fill out the form below for Heat Exchanger Air To Water Aircraft and get a quote for part number UA531157-5 by Triumph Thermal Systems Inc with NSN 1660011951143 and FSC Name is 1660 Aircraft Air Conditioning Heating and Pressurizing 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 UA531157-5. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.