This Helical Precision "Machined" Spring is used here as a torsion spring. The rate required is not precise, however, the ability of the machined spring to give both constraint and pivot functions were unique to the spring approach. The integration of attachment features and ability to influence associated spring rates (in this case, the high lateral stiffness) allows this application to have the beneficial aspects of Value Engineering (one part, multiple functions). The number of pieces in the assembly was reduced, therefore, assembly time was also reduced. This was a Win-Win case for everyone.