NP310 (NEMA C) consists of a cotton canvas fabric and general-purpose phenolic resin. The product is easy to machine and operates with less noise than metal. In addition, this material is not as abrasive as fiberglass alternatives when used in wear applications. Since it does not spark when struck, NP310 can be used in explosion-proof environments. The material is commonly used to make gears, pulleys, rollers, and guides. NP310 is a mechanical grade and does not have electrical properties comparable to NP310E. NP310 complies with the requirements of MIL-I-24768/16, Type FBM.