33A23 - C-Size Acetylene Hose Nut 7/8-14 LH

Heavy-Duty C-Size Connection for Fuel Gas Systems

The ESAB 33A23 is a specialized brass hose nut designed for industrial oxy-fuel applications requiring C-Size fittings. Unlike the standard B-size fittings found on light-to-medium duty equipment, C-Size connections utilize a larger 7/8"-14 thread pitch to accommodate higher flow rates and heavier equipment often found in station drops, heavy manufacturing, and scrap cutting operations.

This specific component features Left-Hand (LH) threads, indicated by the standard notch on the hex, designating it strictly for use with Acetylene, Propane, Propylene, and other fuel gases. The differentiation in thread direction is a critical safety standard in the welding industry to prevent the accidental cross-connection of fuel gas lines with oxygen lines, which could lead to catastrophic equipment failure.

Manufactured from high-quality brass, this nut offers excellent resistance to corrosion and deformation under torque. It is designed to be paired with a corresponding C-Size hose nipple to form a gas-tight seal against the regulator outlet or torch inlet. Whether you are repairing a damaged hose assembly or building a custom manifold system, the ESAB 33A23 ensures compliance with CGA standards for C-Size fuel gas connections.

Technical Specifications

• Thread Size: 7/8"-14 UNS
• Thread Direction: Left Hand (LH)
• Material: Brass
• Application: Fuel Gas (Acetylene, Alt Fuels)
• Compatibility: C-Size Nipples and Fittings