Parker PS1290503-12-12 Male Orb Jic Swivel Fitting 3/4 in

Product Description

The PARKER PS1290503-12-12 is a steel hydraulic hose fitting designed to connect a male SAE O-Ring Boss (ORB) straight-thread port to a male JIC 37-degree flare swivel end. Rated at 5,000 psi, this fitting is built for high-pressure hydraulic line assemblies in industrial, mobile, and construction equipment applications. The swivel design on the JIC end allows for rotational positioning during installation, reducing hose twist and simplifying routing. Hydraulic system technicians and equipment mechanics install this fitting when building or repairing hose assemblies that transition between ORB ports and JIC flare connections. Thread size is 1-1/16-12 on the ORB side and 3/4 on the JIC side, both in steel construction.

This fitting is used in hydraulic systems where an ORB straight-thread port must mate with a JIC 37-degree flare hose end. Common applications include mobile hydraulic equipment, agricultural machinery, construction machinery, and industrial power units. The 3/4-inch hose size and 5,000 psi pressure rating make it suited for medium to high-pressure hydraulic circuits. Installation is typically performed by hydraulic technicians or equipment mechanics assembling or servicing hose runs in the field or shop.

Key Features

• Male SAE O-Ring Straight Thread (ORB) inlet with 1-1/16-12 thread size
• Male JIC 37-degree flare swivel outlet sized for 3/4-inch hose
• 5,000 psi pressure rating for high-pressure hydraulic service
• Steel body construction for durability in demanding hydraulic environments
• Swivel JIC end allows hose positioning without twisting during assembly
• 3/4-inch body diameter matching standard hose ID for unrestricted flow

Compatibility

Designed as an OEM-style hydraulic hose fitting for systems using male SAE O-Ring Boss straight-thread ports and male JIC 37-degree flare hose ends at 3/4-inch hose size and 5,000 psi rated pressure.

Installation Notes

Hydraulic system technicians should depressurize and fully isolate the hydraulic circuit before removing or installing any fittings. The ORB end seals via an O-ring against a flat-faced port — confirm the O-ring is seated and undamaged before tightening. The JIC swivel end should be finger-tightened first to verify thread engagement before torquing to the assembly standard for the circuit. Follow the equipment manufacturer and applicable industry standards for hydraulic fitting assembly and inspection after pressurization.