The MIL-DTL-26482 Series 2, MIL-DTL-5015 Matrix (MS345X), MIL-DTL-83723 Series II Bayonet Coupling Connector with crimp rear release contacts. The closed entry socket side of the insert is designed with a lead-in chamfer and a hard face that will accept a pin contact bent within pre-established limits. Elastomer interfacial seal on the pin side has raised barriers around each pin which displace into the socket chamfer when mated, providing a positive moisture seal. The insertion and removal of contacts from the rear of the connector assures no damage to the front that might affect the sealing characteristics. It utilizes same standard qualified rear-release type plastic tool for contact insertion and removal. Sealing over a range of wire diameters is assured by a triple webbed grommet at the rear of the connector.