WES123 - Western Enterprises 123 Oxygen Hose Nut A-Size 3/8-24 RH

Western Enterprises 123 Brass Hose Nut Technical Overview

The Western Enterprises 123 is a precision-engineered brass hose nut designed for the assembly and repair of welding hoses carrying oxygen or inert gases. Manufactured to strict tolerances, this fitting adheres to the Compressed Gas Association (CGA) V-1 standards for compressed gas cylinder valve outlet and inlet connections, specifically within the "A-Size" classification. The unit features a 3/8"-24 UNF Right Hand (RH) thread, which is the industry standard for smaller, light-duty gas apparatus connections, distinguishing it from the larger "B-Size" (9/16"-18) fittings commonly found on heavy-duty equipment.

Constructed from high-quality free-cutting brass, the 123 nut provides excellent machinability and corrosion resistance, essential for maintaining the integrity of gas flow systems in industrial environments. The brass material is non-sparking, a critical safety feature when working in environments with potential ignition sources. This specific nut is sized to accommodate 3/16-inch Inner Diameter (I.D.) hoses, a common size for light-duty oxy-fuel and inert gas applications. The internal geometry is designed to work in conjunction with a matching ferrule (not included) to create a secure, gas-tight mechanical bond between the hose and the fitting when crimped properly.

Technicians and fabricators utilize the Western Enterprises 123 for both field repairs of damaged hose ends and the fabrication of custom-length hose assemblies. The Right Hand thread direction indicates its use for non-fuel gases, such as Oxygen, Argon, Helium, or Nitrogen, preventing accidental cross-connection with fuel gas lines which utilize Left Hand threads. Proper installation requires a crimping tool and the appropriate ferrule to ensure the assembly meets pressure rating requirements, typically up to 200 PSIG for standard welding hose applications. This component is a staple in MRO inventories for maintaining gas distribution systems and welding apparatus.