Parker 6-8 C5BU-S Bite-type Tube Elbow 3/8 in 5000 Psi Steel

Product Description

The PARKER 6-8 C5BU-S is a flareless bite-type tube fitting in a 90-degree straight thread elbow configuration. It is designed for high-pressure hydraulic and fluid power plumbing where a flared connection is not practical or preferred. The fitting accepts 3/8-inch tube OD and mates via a 3/4-16 UN/UNF straight thread port. Manufactured from steel, it is rated to a maximum working pressure of 5,000 psi. The 24-degree flared angle on the bite-type ferrule creates a leak-resistant mechanical grip on the tube without requiring pre-flaring. Hydraulic technicians and industrial pipefitters install this fitting in high-pressure circuit assemblies, manifold ports, and component connections.

This elbow fitting is suited for industrial hydraulic systems, fluid power circuits, and heavy equipment plumbing where a 90-degree direction change is required between a tube line and a straight threaded port. The 3/4-16 UN/UNF thread is a standard SAE straight thread port size commonly found on hydraulic valves, cylinders, pumps, and manifolds. The flareless bite-type design simplifies assembly in tight spaces where flaring tools cannot be used and is appropriate for both stationary and mobile hydraulic applications.

Key Features

• Flareless bite-type design eliminates the need for pre-flaring the tube end
• 90-degree elbow shape allows direction change at straight thread ports
• Rated to 5,000 psi maximum working pressure for demanding hydraulic service
• 3/4-16 UN/UNF straight thread for positive, leak-resistant port engagement
• 24-degree flared ferrule angle provides a secure mechanical grip on 3/8-inch OD tubing
• Steel construction for strength and durability in high-pressure fluid systems

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic and fluid power systems using 3/8-inch OD tube lines and 3/4-16 UN/UNF straight thread ports.

Installation Notes

Installation should be performed by a qualified hydraulic technician or pipefitter familiar with high-pressure fluid system assembly. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Inspect tube ends for burrs, ovality, or damage before seating the bite-type ferrule, as tube condition directly affects seal integrity. Follow the fitting manufacturer's assembly procedure for ferrule seating turns, and do not over-torque the nut after the ferrule has bitten into the tube.