640583-3 is a right-angle PCB header connector from the 5.0 mm Power Key Connectors (5.0 PKC) series designed for wire-to-board power circuit applications. This 6-circuit header features a duplex contact finish and is part of the Universal MATE-N-LOK connector family with UL94V-0 flammability rating. The connector has key dimensions including A dimension of 1.550 inches (39.37 mm), B dimension of 2.245 inches (57.02 mm), and C dimension of 1.830 inches (46.48 mm), with a 5.0 mm contact centerline and 19.4 mm mated height. It is designed for power circuits in home appliances, particularly gas appliances, and features double lock plate design with locking levers protected by walls to prevent wire tangling.