It (NEMA G-10) is a thermoset rolled and molded composite consisting of a medium- weave glass reinforcement combined with an epoxy resin system. RM500A complies with the requirements of MIL-I-24768/2, Type GEE. RM500A is designed for high electrical and mechanical strength and is suitable for inserts, bushings, cams, rings, collars, spacers, plugs, dowels, insulators, timing wheels, and light-duty gears.