Please fill out the form below for Washer Flat and get a quote for part number 2W1 13 12 187 by Boeing Company The with NSN 5310016657244 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 2W1 13 12 187. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.