Abstract: A tubular body for use with an optical fiber connector, and the connector using such a tubular body. The optical fiber connector includes a coupling nut with an aperture formed therein, a spring and a retainer which are axially arranged on the tubular body. The coupling nut and the spring are retained externally on the tubular body by the retainer with the coupling nut being movable along the outside surface of the body and axially displaced by the spring. The body includes a retainer attachment portion on the outside surface thereof. The retainer attachment portion includes an annular groove and an annular ridge which are formed on the outside surface thereof. The annular groove is sized and dimensioned for receiving a radially applied retainer. The outside diameter of the attachment portion on the outside surface of the body is sized and dimensioned for receiving an axially attached retainer.