This 3/8” male JIC x 1/2" male O-ring boss 90° elbow is made of stainless steel 316 and connects to tubing. This male 90° elbow is for connecting two pipes or tubes at an angle and has hex nut construction for tighter, leak free connections. It is made of stainless steel 316 for strength and resistance to scaling and corrosion. It has a male JIC tube connection on one end for connecting to a flared tube, and a male O-ring boss seal on the other for connecting to a female threaded tube. The O-ring boss seal provides a leak resistant seal when the nut is tightened over the tube. This JIC fitting is a type of flare fitting machined with a 37° flare seating surface. This adapter tube fitting is suitable for use in instrumentation, process, pneumatic, hydraulic, gas and other tubing applications.