Novel terminal connectors or fittings and terminal connector assemblies using such novel terminal connectors are disclosed. The terminal connector assemblies have uses which include, for example, on load- or motion-transmitting cable assemblies, e.g., for aircraft, automotive, and marine vehicle applications. Certain exemplary embodiments of the terminal connectors and terminal connector assemblies have features that, either alone or in combination, provide desirable characteristics such as, e.g., reduced lash or vibration in such cable assemblies. Such features include, but are not limited to groove(s) disposed in an arm of the fitting, tab member(s) extending from an arm of the terminal connector, projection(s) positioned on an arm of the fitting, etc.