350639-1 is a loose-piece brass contact with pre-tin finish used in 5.0 mm Power Key Connectors (5.0 PKC) for wire-to-board power circuit applications. This contact is specifically designed for dual 18 AWG wires (or equivalent 0.8 mm² wire) with a maximum insulation diameter of 2.92 mm (stacked configuration), and is compatible with the HDM Applicator Part No. 687898-13. The contact features brass material with pre-tin plating to ensure reliable electrical connection and corrosion resistance. These connectors are commonly used in power circuits of home appliances, particularly gas appliances, where robust and reliable connections are essential for safe operation.