Please fill out the form below for Valve Stop Check and get a quote for part number Y1670 1 A3 by Young And Cunningham Glasgow Ltd with NSN 4820998118451 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 Y1670 1 A3. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.