A fiber optic connector assembly comprises a housing member having a passageway extending therethrough. A receptacle connector member is latchably mounted in the passageway and has therein fiber optic connectors terminated to ends of fiber optic transmission members and fiber optic cables. The fiber optic connectors are mounted in the receptacle connector member as spring-biased connectors with profiled resilient front ends of the connectors disposed in profiled bores of alignment ferrules that are floatingly mounted in the receptacle connector member. A plug connector member has mounted therein spring-biased fiber optic connectors terminated to ends of fiber optic transmission members. Latch members on the plug connector member latchably secure the plug connector member in the housing member with profiled resilient front ends of the fiber optic connectors being disposed in the profiled bores of the alignment ferrules thereby connecting the respective fiber optic transmission members together under spring forces.