Please fill out the form below for Washer Spring Tensi and get a quote for part number A5DIN137 by Alenia Difesa Spa Divisione Sistemi with NSN 5310121240196 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 A5DIN137. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.