A connector includes a housing having a bore therein. A center conductor element is positioned in the bore and includes a center conductor pin. The center conductor pin is spring-biased to move longitudinally in the housing bore for being compressed. A ground sleeve element is coaxially arranged around the center conductor element and is also spring-biased to move longitudinally in the housing bore for being compressed. The center conductor element and ground sleeve element are coupled together for moving together in the housing bore when compressed. The compressed elements maintain their same coaxial position in the housing bore with respect to each other when the connector is compressed.