SAE AS33514 is primarily for the . It is used for connecting components from different manufacturers, ensuring they will fit and seal correctly without custom machining.

Manufacturers claiming compliance with SAE-AS33514 must subject their fittings to rigorous qualification testing:

Straight threads must be perfectly cut so they mate easily with parts like the Eaton Aeroquip PTFE hose fittings .

SAE-AS33514 fitting ends are used in a wide variety of aircraft and defense systems, including: