Please fill out the form below for Nut Plain Round and get a quote for part number ES1604 by Champ Industries with NSN 5310010815056 and FSC Name is 5310 Nuts and Washers, 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 ES1604. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.