Please fill out the form below for Valve Check and get a quote for part number 74B580185-111 by Boeing Company The with NSN 4820013614004 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 74B580185-111. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.