Parker 6 F5BU-S Bite-type Tube Connector 3/8 in 6000 Psi

Product Description

The PARKER 6 F5BU-S is a flareless bite-type tube straight thread connector designed for high-pressure hydraulic and pneumatic tubing systems. It uses a 24-degree flared angle bite-type design to create a secure, leak-resistant seal without requiring the tube end to be flared. The connector features a 9/16-18 UN UNF straight thread and accepts 3/8-inch OD tubing. Rated to a maximum working pressure of 6,000 psi, this steel fitting is suited for demanding fluid power and instrumentation applications where a reliable tube-to-port connection is required. Installation is typically performed by hydraulic system technicians and industrial pipefitters.

This connector is used in hydraulic lines, pneumatic circuits, and fluid power systems found in industrial, mobile, and OEM equipment. Its straight fitting shape makes it a direct in-line port connection, commonly installed where a tube run terminates at a threaded port on a manifold, valve body, cylinder, or pump. The flareless bite-type design reduces tube prep time compared to traditional flare fittings and is well suited for steel tubing in tight installations.

Key Features

• Flareless bite-type design eliminates the need for tube flaring during assembly
• Rated to 6,000 psi maximum working pressure for high-pressure fluid power service
• 9/16-18 UN UNF straight thread for direct port connection
• Accepts 3/8-inch OD tubing
• 24-degree flared angle provides a secure, leak-resistant seal
• Steel construction for durability in hydraulic and pneumatic environments

Compatibility

Designed as an OEM-style replacement or new-installation fitting for flareless bite-type tube systems using 3/8-inch OD steel tubing with 9/16-18 UN UNF threaded ports.

Installation Notes

This fitting should be installed by a qualified hydraulic technician or pipefitter familiar with bite-type tube fitting assembly procedures. Always depressurize and isolate the hydraulic or pneumatic circuit completely before removing or installing any fittings. Use appropriate wrenching flats on the hex and follow the fitting manufacturer's prescribed number-of-turns assembly method to properly seat the bite ring without over-driving. Verify tube OD and wall thickness compatibility before assembly to ensure the rated working pressure is maintained.