Parker 66NTA-6-6 Compression Tube Connector 3/8 in Brass

Product Description

The PARKER 66NTA-6-6 is a brass compression tube connector designed to join tubing to a female NPT port in hydraulic, pneumatic, and fluid-transfer systems. It features a compression inlet and a female NPTF threaded outlet, providing a reliable, leak-resistant connection without the need for flared ends or soldering. Rated to 150 psi maximum working pressure and suitable for temperatures from -40 degrees F to 200 degrees F, this connector is built for demanding service environments. The brass construction offers good corrosion resistance in fuel, air, and fluid line applications. Certified to D.O.T. FMVSS571.106, SAE J1131, and SAE J246 standards.

This connector is commonly used in automotive brake and fuel line assemblies, mobile equipment plumbing, and light industrial fluid systems where a compression-to-FNPT transition fitting is required. Its DOT and SAE certifications make it appropriate for vehicle brake system applications as well as general-purpose fluid line work. Plumbers, mobile equipment technicians, and fleet service professionals install this type of fitting when routing tubing into female-threaded ports on valves, manifolds, or bulkhead fittings.

Key Features

• Compression x FNPT end connections for tubing-to-pipe-thread transitions
• Brass construction for corrosion resistance in fuel, air, and fluid service
• 150 psi maximum working pressure
• Temperature range: -40 degrees F to 200 degrees F
• Certified to D.O.T. FMVSS571.106, SAE J1131, and SAE J246
• NPTF thread standard for pressure-tight sealing without sealant tape in many applications

Compatibility

Designed as an OEM-style replacement or service fitting for compression tube-to-FNPT connections in automotive, mobile equipment, and light industrial fluid line systems meeting DOT and SAE requirements.

Installation Notes

Installation should be performed by a qualified technician familiar with fluid line and brake system service. Depressurize and isolate the line completely before removing or installing any fittings. Tighten compression fittings by hand first, then advance with a wrench per standard practice — do not overtighten, as brass fittings can be damaged. Verify compliance with applicable vehicle or equipment manufacturer specifications and relevant SAE or DOT standards before returning the system to service.