The 66506-9 from TE Connectivity is a D sub connector pin contact with contact size 20. It has a wire size range from 0.2mm² to 0.6mm² (24AWG to 20AWG). This contact is used with AMPLIMITE HDP-20, CPC connectors. Crimp snap-in contact style  Made of gold flash over nickel plated brass material Pin diameter of 1.02mm (0.04inch) Wire insulation diameter from 1.27mm to 1.52mm (0.05inch to 0.06inch)