Harris Oxygen Inlet Nut and Nipple Assembly CGA-540 x 1/2 MNPT

Reliable Oxygen Connections for Your Shop

When you are setting up a gas manifold system or replacing worn-out components on your heavy-duty regulators, having the right fittings is the difference between a safe, productive day and a headache. The Harris 9103615 Inlet Nut & Nipple is the heavy-hitter you need for connecting standard oxygen cylinders to your shop's piping or manifold blocks. If you are moving gas from a bottle to a 1/2" pipe thread system, this is the adapter that makes it happen.

Built for the Job
This assembly comes ready with a standard CGA-540 nut, which is the universal connection for industrial oxygen tanks in North America. On the other end, you have a beefy 1/2" Male NPT thread. This allows you to screw directly into larger regulators, manifold bars, or hard piping systems commonly found in fabrication shops and industrial plants. The 2.5-inch length of the nipple gives you just enough reach to get your wrench in there and tighten things down without busting your knuckles on the tank valve.

Safety First
Dealing with high-pressure oxygen requires respect and the right materials. You don't want cheap pot-metal fittings that can crack or strip under pressure. This Harris fitting is made from solid brass, ensuring it can handle the pressure of a full cylinder while resisting corrosion and wear. Brass is also non-sparking, which is a non-negotiable safety feature when working with pure oxygen. The metal-to-metal seal design of the CGA-540 connection means you get a tight, leak-free fit every time you swap out a cylinder, provided you keep the seating surfaces clean.

Versatile Application
Whether you are building a custom gas delivery system for a laser cutter, setting up a multi-tank manifold for a welding station, or simply repairing a damaged inlet on a large regulator, this part fits the bill. It’s a straightforward, no-nonsense component that does exactly what it says on the tin: connects your oxygen supply securely and safely. Keep a spare in your maintenance kit so you aren't left scrambling when a thread gets crossed or a nut gets rounded off.