Connector

A connector composing one of two wire-to-wire connector-s, the connector comprising:

• a cylindrical outer housing having an insertion opening on one end for inserting the other connector of the two wire-to-wire connectors;
• an inner housing inserted into the outer housing via an assembly opening on the other end of the outer housing;
• and
• a retainer inserted into the inner housing via a window hole provided in the cylindrical wall portion of the outer housing for locking a terminal in a detachment-preventing manner on the basis of a push-in operation after a wire with the terminal has been inserted into the terminal holding hole in the inner housing;
• wherein the retainer enters a first temporary locking state when inserted into the inner housing via the window hole while the inner housing is being inserted into the outer housing, the retainer being temporarily locked at a non-pushed-in position, and wherein the retainer enters a second temporary locking state when the inner housing is inserted into the outer housing in the first temporary locking state, the retainer being temporarily locked and retained at a non-pushed-in position.