SAE Straight Thread (ORB)

SAE Straight Thread O-Ring

SAE J1926-1

This fitting is also known as O-Ring Boss (ORB)

Recommended by the NFPA for optimal leakage control in medium and high pressure hydraulic systems. The male fitting has a straight thread and O-ring. The female port has a straight thread, a machined surface (minimum spotface) and a chamfer to accept the O-ring. The seal take place by compressing the O-ring in the chamfer. The threads hold the connection mechanically.

Commonly known as "SAE", this port is very common on hydraulic pumps and cylinders.