This document defines the requirements for a threadless, flexible, self- bonding coupling assembly, which, when installed on machined fixed cavity ferrules, provides a flexible connection for joining tubing and components in aircraft fuel, vent, or other systems. This assembled coupling, hereafter referred to as the assembly, is designed for use from -54 to 204 degrees C and at 862 kPa operating pressure. AS coupling components referenced herein have been qualified to AS1650. Ferrules referenced herein are inch ferrules adapted to metric tubing.