Please fill out the form below for Instrument Light and get a quote for part number B4855B1-18Y328 by Honeywell 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 B4855B1-18Y328. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.