Please fill out the form below for Switch Pressure Diffential and get a quote for part number FAD900-004-A by Honeywell Aerospace, 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 FAD900-004-A. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.