These Straight Thru-Panel Adapter fittings are 1/4-18 NPSM (National Pipe Straight Male) in the middle to fit with the included 1/4-18 NPSF Hex Nut, and 5/16" OD Hose-Barb on each end to fit with 5/16" ID hose or tubing. The 1/4-18 NPSM will fit through about a 1/2" bore hole, to sit up with the flange, and be secured with the Hex Nut on the other side. Both the fitting and the hex nut are made from Black Nylon.

Add a Custom Washer: available in Red Silicone or Nitrile (Buna-N). Custom-designed to fit over 1/4-18 NPSM of our Thru-Panel Fittings.

These are multi-purpose fittings and may possibly be used for Automotive, Boat (Marine), Hydroponic, Irrigation, Pneumatic, Agriculture, and Aquarium applications.

Please note: Image may not be to scale, and may or may not represent the item's actual color. For detailed drawing specifications and/or additional information, please Contact Us.