0966-0003 - Victor 0966-0003 B-Size Fuel Hose Nut, 9/16-18 LH

Technical Overview of the Victor 0966-0003 Fuel Gas Nut

The Victor 0966-0003 is a specialized brass retention nut designed for the assembly and repair of oxy-fuel welding hoses. Manufactured to strict tolerances, this component is essential for maintaining the integrity of gas delivery systems in industrial environments. The nut is machined from high-grade brass alloy, selected for its superior resistance to corrosion, sparking, and mechanical deformation under torque. It features a standard B-Size configuration with 9/16"-18 Unified Fine (UNF) threads.

Crucially, this component utilizes a Left-Hand (LH) thread direction, a mandatory safety standard for fuel gas connections (such as Acetylene, Propane, and MAPP gas) to prevent accidental connection to Oxygen lines (which use Right-Hand threads). To further aid in identification, the hexagonal exterior of the nut includes a distinct groove or "notch" around its circumference, a universal visual indicator for left-hand threaded gas fittings as per CGA V-1 specifications. This redundancy in safety design is critical for preventing catastrophic mixing of gases within the manifold or hose system.

The 0966-0003 is designed to mate with standard B-Size hose nipples (barbs) used on 1/4-inch and 3/16-inch internal diameter hoses. It provides the necessary compressive force to seat the nipple against the regulator outlet or torch inlet, ensuring a gas-tight seal. This nut is compatible with all Victor-style apparatus and other equipment adhering to CGA connection standards for fuel gas service. It is an unvalved component intended solely for mechanical connection and retention.

Professionals in MRO (Maintenance, Repair, and Operations) rely on genuine Victor components like the 0966-0003 to ensure compliance with safety regulations and to extend the service life of welding outfits. Whether fabricating custom hose lengths or repairing damaged terminations in the field, this brass nut offers the reliability required for high-pressure and low-pressure fuel gas applications.