Western Enterprises 15-4 CGA-510/580 Brass Nipple, 1/4" NPT x 3-1/2"

Reliable Replacement Nipple for Welding and Gas Setups

When you are setting up a gas manifold or repairing a damaged regulator, having the right fittings is the difference between a safe, working system and a dangerous leak. The Western Enterprises WES15-4 is a heavy-duty brass nipple designed to get your gas equipment up and running smoothly. Known for their quality, Western Enterprises parts are the industry standard for welders and fabricators who demand reliability from their gear. This specific nipple is a versatile workhorse, compatible with some of the most common cylinder connections you'll encounter in the shop, including CGA 510 (Acetylene) and CGA 580 (Argon/Inert Gas).

Measuring 3-1/2 inches long, this nipple gives you the reach you need when connecting pigtails or building out a custom manifold bank. The extra length is particularly helpful when you need to space out connections or when working in tight quarters where a wrench needs a bit more room to swing. The 1/4" NPT male thread on the back end is the standard size for most regulator bodies and manifold blocks, making this a universal solution for many repairs. Because it is made from solid brass, it won't rust or corrode over time, ensuring that your gas flow remains pure and your threads stay clean.

Safety is paramount in welding, and using worn-out or mismatched fittings is a risk you don't need to take. If your old nipple has damaged seating surfaces or stripped threads, swapping it out for a fresh WES15-4 is a quick and affordable fix. This part is tough enough to handle the daily grind of cylinder changeouts and is rated for high-pressure applications up to 3000 PSIG for inert gases. Whether you are running a TIG setup with Argon or an Oxy-Fuel rig with Acetylene, this nipple provides the secure, leak-free connection you rely on to keep your torch burning and your welds clean.

Don't let a small part hold up a big job. Keep a few of these Western Enterprises nipples in your maintenance kit. They are American-made, built to last, and designed to fit the equipment you use every day. From the 11/16" hex for easy tightening to the precision-machined seat, every detail is designed for the professional welder.