It (NEMA LE) is a thermoset rolled and molded composite consisting of a fine-weave cotton reinforcement combined with a phenolic resin system. RM320LE complies with the requirements of MIL-I-24768/13, Type FBE. RM320LE is designed for electrical and mechanical applications, including inserts, bushings, cams, gaskets, collars, bearings, spacers, and light-duty gears.