Abstract: A medical tubing connector includes an elongated generally cylindrical housing for universal coupling to an identically configured connector. The housing includes an open connecting end, a nozzle for connecting to sterile medical tubing and a base portion defining a fluid passageway from the nozzle. A valve assembly is disposed within the connector. The housing also includes an interconnecting portion between the open end and the base portion that comprises a pair of diametrically opposite fingers. The fingers are spaced circumferentially apart to define complementary slots interspersed therebetween. The fingers and slots are configured for engagement when a pair of connectors are interengaged to form a sterile enclosure about the valve assemblies of each connector. The valve assembly for each connector includes a piston that slides within the interlocking portion and contacts several piston retaining stops near the open end of the housing to keep the valve assembly within the housing.