The 3165 is a nylon locknut designed for PG 7 threaded applications in liquid-tight flexible conduit and fitting assemblies. Manufactured from Nylon 6/6 material with a 94V-2 flammability rating, this locknut features a thickness of 0.218 inches (5.5 mm) and wrenching flats of 0.750 inches (19.1 mm), providing secure fastening and easy installation with standard tools. The product is rated for operating temperatures from -22°F (-30°C) to 221°F (105°C), making it suitable for a wide range of industrial and commercial environments. Available in standard black color, the 3165 locknut is commonly used in electrical conduit systems, junction boxes, and cable management applications where reliable threaded connections and vibration resistance are required.