Parker 6-6 Cbu-s Bite-type Male Elbow 3/8 Inch Nptf Steel

Product Description

The PARKER 6-6 CBU-S is a flareless bite-type tube male elbow fitting designed for high-pressure hydraulic and instrumentation tubing systems. It forms a 90-degree turn from a steel tube to a male NPTF threaded port, creating a leak-resistant connection without flaring the tube end. The bite-type design uses a ferrule that bites into the tube OD on assembly, providing a secure mechanical grip. Rated to 5,000 psi maximum working pressure, this fitting is built from steel for durability in demanding fluid power and industrial applications. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers.

This fitting is suited for hydraulic lines, pneumatic circuits, instrumentation tubing, and other high-pressure fluid systems where a 90-degree directional change is needed from a 3/8 inch OD tube to a 3/8 inch NPTF threaded port. It is commonly installed in industrial machinery, mobile equipment, and process equipment where flareless compression-style connections are specified. The 24-degree flared angle and NPTF thread form provide a reliable seal under pressure in both static and dynamic service conditions.

Key Features

• Flareless bite-type design eliminates the need to flare tubing prior to assembly
• 90-degree elbow configuration for directional routing in tight spaces
• 3/8 inch NPTF male thread for tapered, pressure-tight port connections
• Accepts 3/8 inch OD tubing with 24-degree ferrule engagement angle
• 5,000 psi maximum working pressure rating
• Steel construction for strength in high-pressure hydraulic and pneumatic service

Compatibility

Designed as an OEM-style flareless bite-type fitting for use with 3/8 inch OD steel or compatible tubing terminating at a 3/8 inch NPTF threaded port in hydraulic, pneumatic, or instrumentation systems.

Installation Notes

Installation is typically performed by licensed pipefitters, hydraulic technicians, or millwrights following the fitting manufacturer's assembly procedure for bite-type fittings, which requires a specific number of turns past finger-tight to set the ferrule. De-pressurize and isolate the system fully before disassembly or installation. NPTF threads rely on thread interference for sealing; inspect threads for damage before assembly and apply thread sealant only if specified by system design. Follow applicable ANSI, SAE, or plant-specific fluid power standards for torque and reassembly procedures.