0985-0030 - Victor CGA 320 Inlet Nut for CO2 Regulators

Victor 0985-0030 Brass Nut for CGA 320 Connections

The Victor 0985-0030 is a specialized brass retaining nut designed specifically for CGA 320 inlet connections, the standard for Carbon Dioxide (CO2) cylinders in the United States. Manufactured by Victor Technologies, this component is engineered to precise Compressed Gas Association (CGA) standards, ensuring compatibility with standard CO2 cylinder valves and regulator tailpieces.

Constructed from high-quality brass, this nut offers excellent resistance to corrosion and deformation under torque. It features an internal thread specification of .825"-14 NGO-RH (Right Hand), which mates securely with the external threads of a CGA 320 cylinder valve. This nut is intended to be used in conjunction with a matching nipple (tailpiece) and a sealing washer. Unlike some other CGA connections that rely on metal-to-metal seals, the CGA 320 connection requires a flat washer to create a gas-tight seal; the nut provides the necessary mechanical force to compress this washer between the nipple and the valve face.

This part is essential for the repair or assembly of CO2 regulators, flowmeters, and gas distribution manifolds. It is a direct replacement for worn or damaged inlet nuts on Victor regulators as well as compatible equipment from other manufacturers requiring standard CGA 320 fittings. Proper installation requires the use of a smooth-jawed wrench to avoid rounding the hexagonal edges.