3380 - B-Size Oxygen Hose Nut 9/16-18 RH

Technical Specifications

The ESAB 3380 is a precision-manufactured brass hose nut designed specifically for oxygen service in oxy-fuel welding and cutting applications. It features the industry-standard B-Size configuration with a 9/16"-18 Unified Fine (UNF) thread pitch. Crucially, this nut utilizes Right-Hand (RH) threads, adhering to safety standards that distinguish oxygen connections from fuel gas connections (which typically use Left-Hand threads) to prevent dangerous cross-connections.

Constructed from high-quality brass, this fitting offers excellent durability and resistance to corrosion, ensuring a long service life even in demanding industrial environments. The brass material is also non-sparking, a critical safety feature when working with high-pressure oxygen systems. This nut is designed to work in conjunction with a corresponding hose nipple (barb) to crimp or clamp onto standard 1/4" or 3/16" inner diameter welding hoses, securing the hose to regulators, torches, or other gas distribution manifolds.

The hexagonal exterior allows for easy tightening with standard wrenches, ensuring a gas-tight seal when paired with the appropriate nipple and seating surface. This component is essential for the maintenance, repair, and fabrication of custom length oxy-fuel hoses, providing a reliable mechanical connection that withstands the pressures typical of oxygen welding and cutting setups.