Known as "SAE", this port is common on hydraulic pumps and cylinders. Includes an O-Ring.
Pipe Thread (NPTF), for hydraulic applications. The seal takes by deformation of the tapered threads.
National Pipe Straight Mechanical is like NPTF. They have a parallel thread and seal on a 30 deg; seat.
JIC 37° flare hydraulic fittings are used to connect hydraulic hoses as well as flared hydraulic tubing.
Connect most types of metal tubing w/o needing to flare the tube ends.
The BSPP connection is similar to NPSM, except the the thread pitches are different in most sizes.
