Parker 61AB-8 Compression Tube Nut 1/2 Inch Brass

Product Description

The PARKER 61AB-8 is a brass compression tube nut designed to secure compression fittings on 1/2-inch outside diameter tubing. It provides a reliable mechanical seal in fluid and pneumatic line assemblies without the need for flaring or soldering. Rated to 400 psi maximum working pressure and a temperature range of -65 degrees F to 250 degrees F, this nut meets D.O.T. FMVSS571.106 and SAE J246 standards. It is installed by plumbers, HVAC technicians, and fluid-system mechanics wherever brass compression fittings are used in regulated applications.

The 61AB-8 is suited for use in brake line, fuel line, hydraulic, and general fluid-transfer systems that require DOT-compliant components. Its brass construction makes it compatible with a wide range of media and environments, including those subject to vibration and thermal cycling. This nut is a single-piece component sold individually and is intended for use as part of a complete compression fitting assembly.

Key Features

• Brass construction resists corrosion and is compatible with a broad range of fluid media
• Compression-style end connection eliminates the need for flaring or soldering during assembly
• Rated to 400 psi maximum working pressure for use in moderate-pressure systems
• Operating temperature range of -65 degrees F to 250 degrees F suits demanding thermal environments
• Meets D.O.T. FMVSS571.106 and SAE J246 standards for regulated fluid-line applications
• Fits 1/2-inch outside diameter tubing

Compatibility

Designed as an OEM-style compression tube nut for use with 1/2-inch OD tubing in compression fitting assemblies meeting D.O.T. FMVSS571.106 and SAE J246 requirements.

Installation Notes

Installation is typically performed by licensed plumbers or qualified HVAC and fluid-systems technicians. Always depressurize and isolate the line before disassembling or assembling compression fittings. Hand-tighten the nut onto the fitting body before applying a final turn with a wrench to seat the ferrule properly. Do not overtighten, as brass compression components can deform if excess torque is applied.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.