Please fill out the form below for 05 14 03 Tube Oxygen C 3919 and get a quote for part number 56728-027 by Piper Aircraft Inc, 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 56728-027. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.