Please fill out the form below for Valve Diaphragm Sto and get a quote for part number PL 423383-A ITEM 2 by Zeks Air Drier Corp with NSN 4820014077554 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 PL 423383-A ITEM 2. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.