Midland Industries 30408 Welding Stem Nut Assembly Brass

Product Description

The MIDLAND INDUSTRIES 30408 is a brass right-hand thread welding stem and nut assembly designed for oxygen line and welding hose applications. It connects a 3/16-inch hose barb on one end to a 9/16-18 RH UNF threaded fitting on the other, providing a secure, leak-resistant transition between flexible hose and threaded welding equipment. Rated to a maximum operating pressure of 150 psi and suitable for temperatures ranging from -40 degrees F to 160 degrees F, this assembly is built for the demands of professional gas welding and cutting setups. The brass construction resists corrosion and holds up under repeated connection cycles.

This stem and nut assembly is used in oxygen line welding hose installations where a reliable, right-hand threaded connection is required. It is appropriate for both shop and field welding setups where 3/16-inch hose barb connections terminate at standard 9/16-18 RH UNF threaded fittings. Welding technicians and gas supply professionals working with oxygen delivery systems will find this fitting suitable for hose repair, replacement, or new assembly builds.

Key Features

• 3/16-inch hose barb connection on one end for secure hose attachment
• 9/16-18 RH UNF threaded connection on the opposite end
• Maximum operating pressure of 150 psi
• Operating temperature range of -40 degrees F to 160 degrees F
• Brass construction for corrosion resistance and durability
• Right-hand thread configuration for oxygen line welding hose use

Compatibility

Designed as an OEM-style fitting for right-hand thread oxygen line welding hose assemblies requiring a 3/16-inch hose barb to 9/16-18 RH UNF threaded connection.

Installation Notes

Installation should be performed by a qualified welding technician or gas supply professional familiar with oxygen system fittings and applicable safety codes. Always shut off and depressurize the gas supply line before disassembling or installing any hose fitting. Inspect the hose barb seat and threaded connection for damage before tightening. Follow applicable compressed gas and welding safety standards when assembling oxygen delivery systems.