Please fill out the form below for Seat Valve and get a quote for part number C8943-9EPCALLNICU by The Walworth Company with NSN 4820005863920 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 C8943-9EPCALLNICU. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.