0983-0003 - Victor CGA 350 Replacement Brass Nut for Hydrogen and Methane

Precision Engineered for Industrial Gas Safety

The Victor 0983-0003 Nut is a critical component designed for the assembly and maintenance of gas regulation equipment requiring a CGA 350 connection. Manufactured from high-quality brass, this nut is engineered to withstand the rigors of industrial environments while providing a secure and reliable mechanical seal. The CGA 350 standard is specifically designated for use with fuel gases such as Hydrogen, Methane, Natural Gas, and Carbon Monoxide. Adhering strictly to these standards is paramount for facility safety and equipment longevity.

This component features a 0.825"-14 NGO-LH-EXT thread specification. The Left-Hand (LH) thread is a crucial safety feature mandated by the Compressed Gas Association to prevent the accidental connection of fuel gas equipment to incompatible oxidizer lines, such as Oxygen. The nut is typically identified by a notch on the hex, visually signaling its left-hand thread nature to technicians and operators. When paired with a matching CGA 350 nipple, the Victor 0983-0003 ensures the structural integrity of the connection between the gas cylinder valve and the regulator or manifold pigtail.

In professional gas distribution systems, the integrity of every fitting is essential to prevent fugitive emissions and hazardous leaks. Victor's manufacturing process ensures that the internal threads are cut with precision to minimize galling and ensure smooth engagement. This nut is an OEM replacement part, ensuring perfect compatibility with Victor-style regulators and manifold systems that utilize the CGA 350 inlet connection. Whether you are fabricating custom gas manifolds or performing routine maintenance on existing regulators, this brass nut provides the assurance of quality associated with the Victor brand.

Operators should always verify the CGA number stamped on the cylinder valve before attempting connection. The Victor 0983-0003 is strictly for CGA 350 applications. Proper installation requires the use of a compatible nipple (sold separately) to form the gas-tight seal. Regular inspection of these fittings for thread wear or physical damage is recommended as part of a comprehensive preventative maintenance program for industrial gas equipment.