Please fill out the form below for Pin And Collar Hilok and get a quote for part number HL63-79-6-3 by Twin Commander Acft, 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 HL63-79-6-3. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.