The 4051-18-3101 is a RMS Connector manufactured by Souriau that is a subset of their Array Connectors series. This connector is a straight plug and has a force-fit connection. It has an 18-31 position, an insulation resistance of 2000 megohms minimum, an operating temperature range of -55°C to +175°C, an IP68 rating when mated, and a 5A AC/DC rating. It is designed for use in harsh environments and is ideal for military, aerospace, medical, and industrial applications. It is lightweight, non-magnetic, and resistant to shock and vibration.