Parker 68VL-4-2 Compression Tube Connector 1/8-27

Product Description

The PARKER 68VL-4-2 is a brass compression tube connector designed to join tubing to threaded ports in hydraulic, pneumatic, and fluid-handling systems. It features a Compression x Male NPT (MNPT) end configuration with a 1/8-27 thread size, making it a compact, reliable fitting for hard-line tubing connections. The Vibra-Lok compression style provides a secure, vibration-resistant seal without the need for flaring or soldering. Rated to 600 psi maximum working pressure, this connector suits demanding service environments. Installed by licensed plumbers, HVAC technicians, and fluid-power technicians, the 68VL-4-2 meets ISO 6149 and SAE J1926 standards and weighs 0.05 pounds.

The 68VL-4-2 is suited for residential and light commercial applications where compression-to-threaded-port connections are required in refrigeration lines, pneumatic controls, hydraulic circuits, or instrument tubing runs. Its brass construction resists corrosion in moderate-pressure fluid and gas service. The operating temperature range of -30 degrees F to 275 degrees F (135 degrees C) covers most HVAC and industrial control system conditions.

Key Features

• Vibra-Lok compression style — no flaring or soldering required for installation
• 1/8-27 NPT male thread for direct port entry
• Brass construction for corrosion resistance in fluid and gas service
• 600 psi maximum working pressure rating
• Meets ISO 6149 and SAE J1926 standards
• Operating range: -30 degrees F to 275 degrees F

Compatibility

Designed as an OEM-style replacement or service fitting for compression-to-MNPT connections in hydraulic, pneumatic, refrigeration, and instrument tubing systems requiring a 1/8-27 thread size.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or fluid-power technician familiar with compression fitting procedures. Depressurize and isolate the line completely before removing or installing any fitting. Hand-tighten the compression nut onto the tubing, then tighten with a wrench per standard compression fitting practice — do not overtighten, as this can deform the ferrule and compromise the seal. Verify system pressure does not exceed the 600 psi rating before returning the circuit to service.