Please fill out the form below for Nut Self Locking Ex and get a quote for part number H1203W-428 by National Aerospace Corp with NSN 5310014945830 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 H1203W-428. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.