Parker PQ-00052 Hydraulic Hose Coupler 5000 Psi 6mm Unf

Product Description

The PARKER PQ-00052 is a steel hydraulic hose coupler designed for high-pressure fluid connections in hydraulic systems. Rated to 5,000 psi maximum working pressure, this coupler accepts a 6 mm (3/8 inch) hose diameter and connects via a 9/16-18 UNF threaded interface. The coupler body measures 1.66 inches in overall length with a 0.25 inch coupler size and supports a maximum flow rate of 3.00 GPM. Part of the FF Series, it is built for use in mobile and industrial hydraulic circuits where reliable, leak-free connections are required. Licensed hydraulic technicians and industrial maintenance professionals typically source this part for OEM replacements and field repairs.

This coupler is suited for use in compact hydraulic assemblies where a 6 mm hose line connects to a UNF-threaded port. Typical applications include mobile equipment hydraulics, industrial power units, and press or lift circuits operating at or below 5,000 psi. The threaded connection type makes it appropriate for systems requiring a secure, permanent-style coupling without quick-disconnect hardware. The package quantity is 2 units per package, making it practical to keep a spare on hand during service calls.

Key Features

• Rated to 5,000 psi maximum working pressure for demanding hydraulic circuit use
• 9/16-18 UNF threaded connection for secure, leak-resistant fitting engagement
• Accepts 6 mm (3/8 inch) hose diameter
• Steel construction for durability in high-pressure environments
• Maximum flow rate of 3.00 GPM
• Compact 1.66 inch overall length suits tight installation spaces
• FF Series — sold in packages of 2 units

Compatibility

Designed as an OEM-style replacement coupler for hydraulic hose assemblies requiring a 6 mm hose size with a 9/16-18 UNF threaded port rated to 5,000 psi.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Inspect the mating port threads for damage before installation, and apply thread sealant only as appropriate for the fluid type and system specifications. Verify torque and connection integrity before returning the system to service.