15-8 - Western Enterprises 15-8 CGA-580 to 1/4" NPT Brass Nipple (2-1/2" Long)

Premium Brass Adaptor Nipple for Inert Gas Distribution

The Western Enterprises 15-8 Adaptor Nipple is a critical component for professionals managing compressed gas systems. Engineered to meet strict CGA (Compressed Gas Association) standards, this fitting is designed specifically for CGA-580 connections, making it the standard interface for inert gases such as Argon, Nitrogen, and Helium. In industrial environments where gas purity and leak integrity are paramount, relying on high-quality brass fittings is essential to maintain system pressure and prevent contamination.

Constructed from high-grade brass, the 15-8 nipple offers excellent resistance to corrosion and deformation under pressure. The unit features a 1/4" NPT thread on one end, allowing for seamless integration into a wide variety of gas manifolds, pigtails, and regulator inlets. The 2-1/2" length is specifically chosen to provide adequate spacing between the cylinder valve and the regulator body or manifold block, ensuring that technicians have sufficient room to tighten connections without obstruction.

Whether you are configuring a laboratory gas supply, setting up a laser cutting station, or maintaining industrial shielding gas lines, this adaptor nipple provides the reliability required for high-pressure applications. It is rated for standard cylinder pressures (typically up to 3000 PSI) and is machined with precision tolerances to ensure a tight seal when paired with the appropriate nut (sold separately). Trust Western Enterprises for fittings that deliver safety and performance in every connection.

Key Applications

• Inert Gas Manifolds: Essential for connecting cylinder banks to central distribution systems.


• Regulator Assembly: Acts as the inlet stem for standard Argon and Nitrogen regulators.


• System Maintenance: Perfect replacement part for worn or damaged regulator nipples.