CGA-320 Brass Nut for CO2 Regulators, .830-14 NGO RH Female

Reliable CGA-320 Nut for CO2 Welding Setups

When setting up your MIG welding equipment or replacing worn-out components on your gas regulator, the Western Enterprises WESCO-2 CGA-320 Nut is the dependable choice for Carbon Dioxide connections. CO2 is a primary shielding gas used in welding, particularly for carbon steel applications, and ensuring a leak-proof connection between your tank and regulator is the first step to a quality weld. This nut is specifically designed to fit CGA-320 valves, the standard connection for CO2 cylinders in North America, ensuring compatibility with your existing gear.

Constructed from solid brass, this nut is built to withstand the rigors of the welding shop. Brass is the material of choice for gas fittings due to its durability and resistance to galling, meaning the threads will remain in good condition even after many tank swaps. The WESCO-2 features a .830"-14 NGO Right-Hand Female thread that screws smoothly onto the cylinder valve. It is important to note that CGA-320 connections typically require a sealing washer (sold separately) to ensure a gas-tight seal; this nut provides the necessary clamping force to compress that washer effectively against the valve face.

Safety is never something to compromise on when dealing with high-pressure gases. This nut is rated for service pressures up to 3000 PSIG, giving you peace of mind that your equipment can handle the pressure of a full tank. The large 1-1/8" hex shape allows you to get a firm grip with your wrench, ensuring you can tighten it sufficiently without slipping and damaging the nut. Whether you are a professional fabricator running a busy shop or a hobbyist welder working in your garage, using the correct, high-quality fittings is essential for safety and performance.

Don't let a stripped or damaged nut halt your projects. The WESCO-2 is an affordable, high-quality replacement that restores the functionality of your regulator tailpiece. It is also commonly used in other applications beyond welding, such as draft beer systems and aquarium CO2 setups, proving its versatility. Upgrade or repair your gas equipment with this precision-machined brass nut and ensure your shielding gas flows consistently for that perfect bead.