Please fill out the form below for Heater Assembly B Series and get a quote for part number 74D01-3EL by Hartwell Corporation, 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 74D01-3EL. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.