N-A5818CM - Miller AccuLock S Copper Nozzle, 5/8" Orifice, 1/8" Recess

Miller AccuLock S Nozzle for MDX-250 MIG Guns

The Miller N-A5818CM AccuLock S Nozzle is a premium replacement component designed to keep your Miller MDX-250 MIG gun operating at peak performance. Engineered for durability and precision, this nozzle is an essential consumable for welders who demand reliability in their equipment. As part of the AccuLock S series, it is built to withstand the rigors of industrial welding applications, offering a longer service life than standard consumer-grade nozzles.

This specific nozzle features a 5/8-inch orifice, which is a versatile size suitable for a wide range of welding amperages and joint configurations. The 1/8-inch tip recess is strategically designed to protect your contact tip from excessive heat and spatter, reducing the frequency of tip changes and downtime. Constructed from high-quality copper, the N-A5818CM effectively manages heat, preventing the nozzle from overheating during extended welding sessions.

One of the standout features of this product is its thread-on connection. Unlike slip-on nozzles that can become loose or misaligned over time, the AccuLock S nozzle threads securely onto the diffuser. This ensures that the nozzle stays tight, even during thermal cycling and cleaning. The steel retaining ring on the compatible diffuser further enhances this secure fit. Whether you are performing automotive repairs, general fabrication, or maintenance work, this genuine Miller part ensures your shielding gas is delivered smoothly and consistently to the weld pool.

Investing in genuine Miller consumables like the N-A5818CM ensures compatibility and performance. This nozzle is the direct replacement for the standard nozzle found on several MDX-250 gun models (stock numbers 177041, 177042, and 177043). By maintaining your torch with the correct AccuLock S parts, you ensure a flawless wire-feed path and superior arc stability.