Please fill out the form below for Parts Kit Butterfly and get a quote for part number 54000A007 by Norriseal with NSN 4820014579449 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 54000A007. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.