Please fill out the form below for Roller 1 4 and get a quote for part number 74-451-89 by Eads Casa, 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 74-451-89. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.