Please fill out the form below for Screw Cap Socket He and get a quote for part number 639AS1599 by 3 V Fastener Co Inc with NSN 5305010990393 and FSC Name is 5305 Screws, 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 639AS1599. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.