Please fill out the form below for Seal Plain and get a quote for part number PL 18.800 POS420.1 39.335 by Iron Pump A S with NSN 5330222690855 and FSC Name is 5330 Packing and Gasket Materials, 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 18.800 POS420.1 39.335. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.