A 5502-08-08 | 1/2" Male NPTF x 1/2" Female NPTF 90° hydraulic adapter is a type of hydraulic fitting that consists of two parts: a male NPTF (National Pipe Taper Fuel) fitting with a 1/2" size and a female NPTF fitting with a 1/2" size in a 90-degree angled configuration.