1-66358-7 is a Metrimate Type III+ crimp socket contact designed for use in pin and socket connector systems. This socket contact features selective gold over nickel plating and accommodates wire sizes from 18-14 AWG (0.8-2.0 mm²). The contact operates within a temperature range of -55°C to +130°C and is rated for voltage levels up to 600 VAC/VDC (UL/CSA) with a dielectric strength of 2000 Volts RMS. The connector system is UL recognized, CSA certified, and tested to VDE requirements, making it suitable for industrial, commercial, and instrumentation applications requiring reliable electrical connections.