N-A5800CM - Miller MDX-250 AccuLock S Flush Nozzle 5/8 Inch

Miller AccuLock S Flush Nozzle for MDX-250 Systems

The Miller AccuLock S Flush Nozzle (N-A5800CM) is a premium consumable designed exclusively for the Miller MDX-250 MIG welding gun series. Engineered for industrial durability and precision, this nozzle features a 5/8-inch orifice and a flush tip configuration, making it an ideal choice for a wide range of general fabrication and manufacturing applications. As part of the revolutionary AccuLock S system, this nozzle works in harmony with AccuLock contact tips and diffusers to solve common wire-feeding challenges.

One of the standout features of the N-A5800CM is its thread-on design. Unlike traditional slip-on nozzles that can become loose over time due to thermal expansion and vibration, the AccuLock S nozzle threads securely onto the diffuser. A steel retaining ring on the diffuser ensures the nozzle stays tight during use, maintaining consistent gas coverage and reducing downtime for adjustments. This secure fit also promotes better electrical conductivity and heat dissipation, extending the life of the consumable.

The AccuLock S system is renowned for its ability to optimize wire feeding. By centering and locking the liner into position at the front of the gun, this nozzle helps create a flawless wire-feed path from the feeder to the contact tip. This reduction in friction and misalignment results in a more stable arc and fewer burn-backs. Constructed from high-quality copper, the N-A5800CM is built to withstand the rigors of industrial welding, offering resistance to spatter adhesion and heat deformation.

This nozzle is the standard replacement for the flush nozzles originally supplied with MDX-250 MIG guns (stock numbers 177041, 177042, and 177043). Whether you are welding mild steel, stainless steel, or aluminum, the Miller AccuLock S Flush Nozzle delivers the reliability and performance professional welders demand.