0386-1105 - TurboTorch CGA 520 Regulator Inlet Nut and Swivel Assembly

Keep Your B-Tank Setup Leak-Free and Safe

For HVAC technicians and plumbers, the "B" tank is a daily companion. Whether you are brazing copper lines on a rooftop or soldering pipes in a crawlspace, your portable acetylene rig needs to be reliable. The TurboTorch 0386-1105 Inlet Swivel & Nut is the genuine replacement part you need when your regulator connection starts to show signs of wear. Over time, the brass nut on your regulator can get banged up, the threads can get crossed, or the sealing face of the swivel can get scratched. When that happens, you risk a gas leak—something you never want to mess with when handling acetylene.

This kit comes with the specific CGA 520 nut and swivel stem that fits standard 40-cubic-foot acetylene cylinders (B-tanks). It is built by TurboTorch, so you know it fits your TurboTorch regulators perfectly, as well as other brands that use the standard CGA 520 inlet. The brass construction is tough enough to handle the wrenching you do every time you swap out a tank, but soft enough to create that perfect metal-to-metal seal that keeps the gas where it belongs. The swivel action is a lifesaver in tight spots, letting you angle your gauges exactly where you need them so you can read your pressure without twisting your neck.

Don't rely on sketchy, generic fittings found in the bottom of a toolbox. Acetylene fittings have specific thread directions and shapes for a reason. The CGA 520 is a right-hand thread, distinct from the larger tanks, and using the wrong part can strip your valve or fail to seal. Swapping out a damaged inlet nut is a quick and cheap repair that can save you the cost of a whole new regulator and, more importantly, keep you safe on the job. If you notice your regulator wiggling or hear a hiss at the tank connection, it’s time to refresh your gear with this OEM replacement.

This part is essential for anyone running a TurboTorch air-acetylene kit. It’s small enough to keep a spare in your van, ensuring you never get stuck on a job site with a bad connection. Simply remove the old inlet from your regulator body (usually with a vice and a wrench), clean the threads, and install this new swivel and nut. It’s a five-minute fix that restores your equipment to factory safety standards. Keep your flame steady and your connections tight with the 0386-1105.