Parker 20621-4-4 Female Jic 37 Swivel Fitting 6000 Psi

Product Description

The PARKER 20621-4-4 is a straight female JIC 37-degree swivel fitting designed for hydraulic hose assemblies operating at up to 6,000 psi. Machined from steel, this fitting connects a size-4 hydraulic hose to a 7/16-20 JIC-threaded port using a swivel design that allows rotational alignment during installation without stressing the hose or adjacent components. The 0.25-inch body diameter and 3/16-inch shaft thread size suit compact hydraulic circuits where space and precise torque management are critical. Licensed hydraulic technicians and fluid-power mechanics install this fitting in both mobile and stationary hydraulic systems.

This fitting is suited for industrial, agricultural, construction, and mobile equipment hydraulic circuits where SAE-standard JIC connections are specified. The straight configuration makes it a direct-entry fitting for inline hose-to-port connections. It is compatible with size-4 hydraulic hose and 7/16-20 JIC female-threaded ports per SAE standards. The swivel feature simplifies routing in tight installations where fixed fittings would introduce hose twist or misalignment stress.

Key Features

• 6,000 psi pressure rating for high-pressure hydraulic service
• Straight female JIC 37-degree swivel design allows rotational alignment during assembly
• Steel construction for durability in demanding hydraulic environments
• 7/16-20 thread size conforms to SAE JIC standards
• Size-4 hose compatibility with 0.25-inch body diameter and 3/16-inch shaft thread

Compatibility

Designed as an OEM-style replacement or service fitting for size-4 hydraulic hose assemblies using SAE JIC 37-degree female swivel connections with a 7/16-20 thread specification.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid-power mechanic. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Use appropriate flare-nut wrenches to avoid deforming the swivel body, and inspect the JIC 37-degree flare seat on the mating port for damage before assembly. Follow SAE J514 torque guidelines for the applicable thread size and material combination.