Abstract: A fluid tight connection, including a hose assembly, a component to be connected such as an adapter, and an O-ring seal between the hose assembly and adapter. The hose assembly includes a length of metal tube with a central, corrugated portion providing flexibility for the tube, and smooth portions adjacent one or both ends. An annular sleeve is located on one or both tube ends, and brazed to the smooth surface portion. A nut is loosely received about the tube, and has an internal cavity with threaded forward portion enabling the nut to be screwed onto the adapter, and a rear portion with an inner annular shoulder having an inner diameter smaller than the outer diameter of the sleeve which prevents the nut from being removed over the sleeve. The O-ring seal is located between a forward end of the sleeve and an inner annular shoulder of the adapter.

Abstract: A fluid tight connection, including a hose assembly, a component to be connected such as an adapter, and an O-ring seal between the hose assembly and adapter. The hose assembly includes a length of metal tube with a central, corrugated portion providing flexibility for the tube, and smooth portions adjacent one or both ends. An annular sleeve is located on one or both tube ends, and brazed to the smooth surface portion. A nut is loosely received about the tube, and has an internal cavity with threaded forward portion enabling the nut to be screwed onto the adapter, and a rear portion with an inner annular shoulder having an inner diameter smaller than the outer diameter of the sleeve which prevents the nut from being removed over the sleeve. The O-ring seal is located between a forward end of the sleeve and an inner annular shoulder of the adapter.