Please fill out the form below for Outlet Cover Assembly and get a quote for part number 254.055 by Dana Limited with NSN 4820012821757 and FSC Name is 4820 Valves Nonpowered, 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 254.055. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.