Please fill out the form below for Nut Self Locking He and get a quote for part number 0.37516UNC3BG400SNCB by Electric Boat Corporation with NSN 5310015124172 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 0.37516UNC3BG400SNCB. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.