RAP164-20900

AN819-4 Flared Tube Sleeve

The AN819-4 is a flared tube connection sleeve (Flared Tube Sleeve) manufactured to the AN (Air Force-Navy) standard. Its function is to reinforce the end of metal tubes and distribute the tightening load of the AN818 nut, ensuring a secure connection and proper sealing in aircraft fluid systems. The AN819-4 model is designed for tubes with an external diameter of 1/4" and has an equivalent MS20819-4.