This standard BS EN 3566:2001 Aerospace series. Pipe coupling 8°30' in titanium alloy. Adaptor with lockring is classified in these ICS categories:
49.080 Aerospace fluid systems and components
This standard specifies the characteristics for adaptors, with lockring, for pipe couplings 8°30', in titanium alloy, for installing in a boss for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C