CGA350-1P - Miller CGA 350 Replacement Nut, Electrolytic Nickel Plated

Precision Gas Connection Hardware: Miller CGA350-1P

The Miller CGA350-1P Nut is a specialized component designed for the safe and secure connection of compressed gas equipment. Manufactured to the rigorous standards of the Compressed Gas Association (CGA), this nut is specifically engineered for CGA 350 connections. The CGA 350 standard is designated for specific flammable gases, including Hydrogen, Methane, Natural Gas, Carbon Monoxide, Ethane, and Ethylene. Ensuring the correct fitting is utilized is paramount in industrial gas applications to prevent cross-connection of incompatible gases, a critical safety feature inherent in the CGA system.

This particular model features an electrolytic nickel finish. Nickel plating is often chosen for its superior corrosion resistance compared to bare brass, as well as its aesthetic durability. In environments where equipment is exposed to harsh conditions or where cleanliness is a priority, the nickel finish helps maintain the integrity of the component over time. The electrolytic process ensures a uniform coating that adheres tightly to the base metal, preventing flaking and ensuring smooth threading operation even after repeated use.

For industrial MRO professionals, maintaining the integrity of gas distribution systems is a daily priority. The nut is the primary mechanical fastener that seals the nipple against the cylinder valve or manifold outlet. A compromised nut—whether through thread wear, physical deformation, or corrosion—can lead to dangerous leaks. Replacing worn hardware with genuine OEM parts like the Miller CGA350-1P ensures that the dimensional tolerances match the mating components perfectly, guaranteeing a leak-tight seal when torqued to specification.

This component is typically used in conjunction with a matching nipple (sold separately) to form a complete tailpiece assembly for regulators, pigtails, or manifold headers. Whether you are assembling a new gas delivery system or refurbishing existing Miller gas regulation equipment, this nut provides the reliability expected from a top-tier welding and gas equipment manufacturer.