Please fill out the form below for Valve Vent and get a quote for part number 1660W2-1 2 INCS by Robert H Wager Company Inc with NSN 4820011784872 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 1660W2-1 2 INCS. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.