O-Ring Boss (ORB) and JIC 37° fittings use the same thread sizes, but the ORB seal occurs on the rubber o-ring of the male ORB connector.

The female ORB straight thread port has a machined seat where the o-ring nests and seats when the threads are tightened.

ORB threads feature wet threads so there is never any chance of corrosion on the fittings threads below the o-ring.

Pulsar Hydraulic Hose & Fittings 10th Edition Catalog

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9/16"-18 x 3/8" Steel Male ORB - Female NPSM Swivel 0611-06-06

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