Please fill out the form below for Cup Valve and get a quote for part number 51D72 by Grimes Aerospace Company with NSN 1660001666487 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 51D72. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.