Please fill out the form below for Round Metal and get a quote for part number QQS634 by Federal Specifications with NSN 9640009566637 and FSC Name is 9640 Iron AND Steel Primary AND Semifinished Products, 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 QQS634. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.