Fittings

Red Oak Hydraulics carries a large line of both one-piece and two-piece fittings to meet all of your coupling needs. Our extensive line of hydraulic fittings is available in both carbon and (upon request) stainless steel up to two-inch. Our hydraulic fitting line has a vast array of options for leak-free solutions.

Hydraulics have become progressively more complicated. Pressures are getting higher and hoses are getting smaller to accommodate tighter spaces. Hose information is usually printed on the layline of the original hose. If markings on the side of the hose are not visible it will be cut to determine the diameter and pressure rating. Additional information from the customer will also help us select the proper size and pressure. After hose has been assembled it is checked for proper tolerances.

Common Thread Configurations

Male Pipe Thread Female Pipe Thread
Male SAE (45* Flare) SAE Female Inverted, Solid
Female SAE (45* Flare) “O”-LOK
Male JIC (37* Flare) Male Inverted Flare
Female JIC (37* Flare) O-Ring Flange SAE (Code 61)
Male O-Ring Boss O-Ring Flange SAE (Code 62)

Foreign Thread Types

British BSPT and BSPP
French GAZ 24* and POCLAIN 24* Flange
German DAN 24* and 60 Cone
Japanese 30* Flare Parallel Threads/Tapered Pipe Threads
Komatsu 30* Flare Flange Fitting

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Hydraulics