Please fill out the form below for Brake Disk and get a quote for part number A31-21217-3A by Eurocopter American, 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 A31-21217-3A. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.