Please fill out the form below for Hook Electronic Case and get a quote for part number M857311-13C by Collins Avionics Service Centre, 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 M857311-13C. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.