Please fill out the form below for Retainer Packing and get a quote for part number D-623-8 18IN ITEM 19 by Stockham Valves And Fittings Inc with NSN 5330012757691 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 D-623-8 18IN ITEM 19. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.