Parker 66AB-8-8 Compression Tube Connector 1/2-14 Brass

Product Description

The PARKER 66AB-8-8 is a brass compression tube connector designed to create a secure, leak-resistant joint between a compression tube end and a female NPT port. Built to handle pressures up to 400 psi and temperatures ranging from -65 degrees F to 250 degrees F, this fitting is engineered for demanding fluid and pneumatic line applications. The all-brass construction resists corrosion and provides reliable sealing across a wide operating range. It meets DOT FMVSS571.106 and SAE J246 standards, making it appropriate for brake and fuel line systems in mobile and industrial equipment. Licensed plumbers, HVAC technicians, and fleet mechanics commonly install this type of fitting.

This connector is suited for use in hydraulic, pneumatic, and fluid transfer systems where a compression tube must transition to a female NPT threaded port. Typical installations include mobile equipment, commercial vehicles, and industrial machinery requiring DOT-compliant fittings. The 1/2-14 NPTF thread size and 0.408-inch inside diameter make it compatible with standard half-inch compression tube lines. It is sold individually and is appropriate for both new installations and field repairs where a reliable compression-to-FNPT transition is required.

Key Features

• Brass construction for corrosion resistance and long service life
• Compression x FNPT end connections for reliable tube-to-port transitions
• Rated to 400 psi maximum working pressure
• Wide temperature range: -65 degrees F to 250 degrees F
• Meets DOT FMVSS571.106 and SAE J246 standards
• 1/2-14 NPTF thread size with 0.408-inch inside diameter

Compatibility

Designed as an OEM-style replacement or new-install fitting for compression tube systems requiring a 1/2-14 NPTF female NPT transition in DOT-compliant fluid or pneumatic line applications.

Installation Notes

This fitting is typically installed by licensed plumbers, HVAC technicians, or qualified fleet mechanics working on fluid or pneumatic line systems. Depressurize and drain the system completely before removing or installing any compression fitting. Use appropriate thread sealant or tape rated for the fluid being conveyed, and ensure the compression sleeve is seated squarely before tightening. Follow applicable DOT regulations and SAE guidelines for brake and fuel line installations.