Please fill out the form below for Stdf 3 16Hex 4 40X3 4 Sst and get a quote for part number 2979800087 by L 3 Communications Avionics Systems, 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 2979800087. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.