The Tweco Style 23 Series MIG Nozzle is a premium thread-on nozzle designed for superior welding performance, featuring a smart 3-piece construction that eliminates the need for a separate insulator, streamlining assembly while maintaining durability and efficiency. Crafted with a copper alloy tubing housing and a solid brass alloy insert, this nozzle ensures long-lasting reliability in demanding medium to heavy-duty welding tasks up to 450 amperes, with sizes available in 3/8", 1/2", 5/8", and 3/4" for versatile applications. The built-in silicone insulator provides essential electrical insulation from the gas diffuser, enhancing safety, while the rolled-stamped Part No. on the surface allows for quick identification and selection. Compatible with Lincoln Magnum Guns and Tweco #3 MIG Welding Guns, it matches KP23 and KP23F nozzles and fits Tweco 54A, 52FN diffusers, as well as 63J and 64J series tubes, making it a highly adaptable choice for professional welders.