CGA510-1 - Miller CGA 510 Brass Replacement Nut for Fuel Gas Regulators

Keep Your Fuel Gas Setup Leak-Free

If you are running an oxy-acetylene or oxy-propane torch, you know that the condition of your regulator connections is everything. The Miller CGA510-1 Brass Nut is the exact replacement part you need when the threads on your old nut start to look chewed up or if you've rounded off the hex with a wrench. This is a standard CGA 510 nut, meaning it is built specifically for fuel gas cylinders like Acetylene and Propane. Don't risk a leak or a loose connection by using generic hardware that might not seat correctly; stick with Miller OEM parts to ensure your rig stays tight and safe.

One of the most important features of this nut is the left-hand thread. In the welding world, we all know the rule: fuel gas is left-hand, oxygen is right-hand. This nut follows that safety standard perfectly, ensuring you never accidentally hook your fuel line up to an oxygen cylinder. You can usually spot the "notch" on the corners of the nut, which is the universal sign for "turn left to tighten." Made from solid brass, it’s tough enough to handle the daily grind of swapping out tanks but soft enough to create a good seal without destroying the threads on your cylinder valve.

Whether you are working in a fab shop, on a pipeline, or in your home garage, safety comes first. A stripped nut isn't just an annoyance; it's a hazard. Gas leaks can lead to flashbacks or fires, so keeping your fittings fresh is cheap insurance. This Miller nut is designed to fit standard nipples used on regulators and hoses. It spins on smooth and tightens down securely. Keep a few of these in your toolbox so you aren't left stranded with a bad connection right when you need to cut some steel. It’s a small part, but it plays a huge role in keeping your flame steady and your shop safe.