CGA-540 Oxygen Regulator Inlet Nut, Brass, 3000 PSIG

Reliable Replacement Oxygen Nut for Welding Regulators

For professional welders and fabricators, maintaining your oxy-fuel equipment is as important as the welding process itself. The Western Enterprises WES-62 Inlet Nut is the standard replacement part for the connection between your oxygen regulator and the oxygen cylinder. Over time, the threads on your regulator nut can become worn, cross-threaded, or damaged from drops and daily abuse in the shop or on the field. A compromised nut can lead to dangerous gas leaks, wasted consumables, and inaccurate pressure readings. The WES-62 allows you to restore your regulator's connection to factory-new condition, ensuring a safe and reliable seal every time you swap out a tank.

This inlet nut is designed specifically for CGA-540 connections, which is the standard for industrial oxygen tanks used in cutting, brazing, and welding applications. It features right-hand threads, distinguishing it from fuel gas fittings which typically use left-hand threads to prevent accidental mixing of lines. The 1-1/8" hex design is robust and fits standard shop wrenches, allowing you to tighten the connection securely to the cylinder valve. Because it is made from high-quality brass, it resists corrosion and galling, ensuring that it spins on and off the cylinder valve smoothly, even after hundreds of tank changes.

Safety is the number one priority when dealing with pure oxygen. A leak at the cylinder connection can create an oxygen-enriched atmosphere, significantly increasing flammability hazards in your workspace. Using a fresh, high-quality nut like the WES-62 ensures that the nipple seats properly against the cylinder valve, eliminating leaks at the source. This component is rated for up to 3000 PSIG, handling the full pressure of a fresh oxygen bottle with ease.

This nut is also an essential component for those building custom gas manifold systems or repair pigtails. If you are setting up a bank of cylinders for a CNC cutting table or a central shop distribution system, using high-quality Western Enterprises fittings ensures the longevity and safety of your infrastructure. Remember, this is the nut only; ensure you have the correct corresponding nipple to complete the assembly. Keep a few of these in your toolbox or maintenance locker so that a stripped thread never halts your production schedule.