This standard specifies the characteristics of the pipe coupling adapter, 60° spherical sealing face manufactured in titanium alloy with locking ring, for installing in a boss for aerospace applications. These adapters shall be installed into port connections manufactured in accordance with EN 2602 using ISO 3601-1 sealing O-rings selected sizes. O-ring material depends on the system fluid and operation conditions. The installation shall be performed in accordance with EN 2608. Nominal working pressure: up to 28000 kPa. Temperature range: limited by elastomeric sealing ring, −54 °C to +135 °C