ISO FDIS 19631

Description / Abstract: This International Standard specifies performance and quality requirements for the qualification and manufacture of standard tube fittings to ensure reliable performance in aircraft hydraulic 5 080 psi (35 000 kPa) systems.

This International Standard specifies baseline criteria for the design and manufacture of system fittings that are qualification tested on engines.

This International Standard covers fittings from size –04 to –20 used for the following:

— separable/permanent pipe end fittings;

— permanent connection fittings;

— separable connection fittings.

This International Standard covers fittings of the temperature types and pressure classes specified in ISO 6771.