058676 - Miller 058676 Brass Compression Nut .438-20 .50Hex

Genuine Miller 058676 Brass Compression Nut

The Miller 058676 is a specialized brass compression nut designed for specific applications within Miller welding equipment. As a genuine OEM (Original Equipment Manufacturer) component, this nut is engineered to meet the exact tolerances and material specifications required for the safe and efficient operation of your welding machine. Unlike generic hardware store fasteners, the Miller 058676 features a "Compression Modified" design, ensuring it seats correctly against the mating ferrule or fitting to create a reliable, leak-proof seal in gas or fluid lines.

Constructed from high-quality brass, this nut offers excellent resistance to corrosion and oxidation, which is critical in welding environments where moisture and varying temperatures can affect component longevity. The brass material also provides the necessary ductility to create a tight compression seal without damaging the mating threads or tubing. The nut features a standard 0.50-inch (1/2") hex head, allowing for easy installation and removal using standard wrenches. Its overall height is 0.75 inches, providing ample thread engagement for a secure hold.

The thread specification is listed as .438-20, which corresponds to a 7/16-20 UNF thread. This size is commonly associated with 1/4-inch compression fittings, often found in shielding gas lines or water cooling circuits within welding power sources. Using the correct replacement part is vital for maintaining the integrity of these systems. A compromised nut can lead to gas leaks, which not only waste expensive shielding gas but can also result in porosity in your welds due to inadequate coverage. In water-cooled systems, a leak could cause significant damage to internal electronics.

When maintaining your Miller equipment, always verify fitment using your machine's serial number. This ensures that the 058676 is the correct revision for your specific model. Trusting genuine Miller parts like this brass compression nut guarantees that your equipment remains compliant with factory specifications and continues to perform at the high level you expect from Miller Electric products.