Please fill out the form below for Valve R134a Thrml Exp Txv and get a quote for part number WPX-3420BMSA by Md Helicopters 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 WPX-3420BMSA. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.