Please fill out the form below for Tube Assembly Metal and get a quote for part number 5-89398-31 by Boeing Company The, 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 5-89398-31. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.