A mounting system is provided for readily mounting an electrical connector in an opening in a panel for interconnecting an electrical device on one side of the panel with an electrical component on the other side of the panel. A complementary interengaging pivot arrangement is provided between a nose of the connector and the panel, near the opening in the panel, whereby the connector can be rotated to an operative position in the opening. Complementary interengaging latches are provided between the connector and the panel, near the opening and remote from the pivot means, for holding the connector in its operative position. Interengaging stops are provided for preventing disengagement of the pivot arrangement when the connector is in its operative position.