Please fill out the form below for Plug Vent and get a quote for part number 451-0640-0000 by Brevini Usa Inc with NSN 5340013891237 and FSC Name is 5340 Hardware Commercial, 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 451-0640-0000. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.