Please fill out the form below for Switch Extension and get a quote for part number B21149 by Litton Systems Inc with NSN 5930003329402 and FSC Name is 5930 Switches, 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 B21149. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.