Please fill out the form below for Bolt Reduced Head 100 Csk and get a quote for part number NAS1993-5T by Bombardier Aerospace, 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 NAS1993-5T. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.