Please fill out the form below for Extender Card Elect and get a quote for part number 55681-00001 by Navigation Systems Division with NSN 5998010939249 and FSC Name is 5998 Electrical and Electronic Assemblies Boards Cards and Associated Hardware, 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 55681-00001. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.