WES72 - CGA-555 Brass Nut .908-14 NGO LH Female for Liquid Propane/Butane

Precision Engineered CGA-555 Connection Hardware

The Western Enterprises WES72 is a specialized gas connection nut designed to meet the rigorous standards of the Compressed Gas Association (CGA). Specifically engineered for CGA-555 connections, this component is critical for the safe and efficient setup of systems utilizing Butane and Propane for liquid withdrawal. Unlike standard vapor withdrawal fittings, the CGA-555 standard employs a unique geometry to ensure that only the correct equipment is connected to liquid supply cylinders, thereby mitigating the risks associated with phase mismatching in industrial and laboratory applications.

Manufactured from high-grade free-cutting brass, the WES72 offers superior machinability and structural integrity. The material choice provides excellent resistance to corrosion and oxidation, which is vital for components exposed to hydrocarbon gases and varying environmental conditions. The nut features a .908"-14 NGO Left-Hand Female thread profile. The left-hand thread is a deliberate safety feature, physically preventing the connection of this nut to standard right-hand thread fittings used for other gases or vapor service. This mechanical lockout is a primary line of defense in gas safety management systems.

With a pressure rating of 3000 PSIG, this nut is capable of withstanding the pressures typically associated with liquefied gas cylinders and manifold systems. The external geometry features a 1-1/8" RC Hex, allowing for secure tightening using standard industrial wrenches. The component has a length of 0.957 inches and a weight of approximately 0.162 lbs, making it a robust yet compact solution for gas train assemblies. As a product manufactured in the United States, it adheres to strict quality control measures, ensuring consistent thread quality and dimensional accuracy that professionals rely on for leak-tight seals.

This nut is intended to be used in conjunction with a compatible nipple (sold separately) to form a complete gas tight seal against the cylinder valve outlet. It is suitable for use in a wide range of target industries including heavy industrial manufacturing, welding fabrication, and analytical laboratories where liquid phase hydrocarbons are required.