Parker 61VL-10 Brass Vibra-lok Compression Tube Nut

Product Description

The PARKER 61VL-10 is a brass compression tube nut designed for use in fluid and pneumatic line assemblies where secure, vibration-resistant connections are required. Built to the Vibra-Lok compression style, this nut uses a locking feature that resists loosening under vibration and thermal cycling — a common failure point in mobile equipment, HVAC refrigerant lines, and industrial tubing runs. The straight thread size is 1-18, and the all-brass construction provides corrosion resistance suitable for a wide range of media. Licensed plumbers, HVAC technicians, and fluid power mechanics are the typical installers of this fitting component.

This compression tube nut is suited for use in both residential and light commercial applications where compression-style fittings are the specified connection method. Typical install scenarios include refrigeration line sets, hydraulic and pneumatic control tubing, fuel lines, and instrumentation tubing systems. The Vibra-Lok design makes it a preferred choice in applications subject to continuous vibration, such as compressor connections, engine-adjacent tubing, and mechanical room piping where standard compression nuts may work loose over time.

Key Features

• Vibra-Lok compression style provides vibration-resistant locking without additional hardware
• Brass material offers corrosion resistance and compatibility with a broad range of fluid media
• Straight thread size 1-18 for precise, repeatable thread engagement
• Compression end connection for tool-accessible, reliable tube sealing
• Compact, lightweight at 0.11 pounds — suitable for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation compression tube nut for systems using Parker Vibra-Lok compression fittings with a 1-18 straight thread specification.

Installation Notes

Installation of compression tube nuts should be performed by a licensed plumber, HVAC technician, or qualified fluid power mechanic. Shut off and depressurize the system completely before removing or installing any compression fitting. Hand-tighten the nut onto the fitting body first, then use the appropriate wrench to complete the final turn per the fitting manufacturer guidelines — do not overtighten, as brass compression components can be damaged by excessive torque. Ensure the tubing is cut cleanly and deburred before seating to maintain a leak-free seal.