Please fill out the form below for Pneumatic Pressure Supply and get a quote for part number TK2253-4 939 by Hawker Beechcraft Ltd, 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 TK2253-4 939. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.