EO-2 soft-seal bite-type fittings for metric tubing feature an EO-2 functional nut, which consists of the retaining ring and sealing ring pre-assembled in the nut. The sealing ring features a soft elastomeric seal which seals on the outside diameter of the tube and the 24-degree cone of the fitting body. The retaining ring bites into the O.D. of the tube to provide the holding power.
Parker Hannifin Corp., Tube Fittings Div., 3885 Gateway Blvd., Columbus, OH 43228.