Parker 66NTA-8-8 Compression Tube Connector 1/2 in Brass

Product Description

The PARKER 66NTA-8-8 is a brass compression tube connector designed for use in pneumatic and fluid-line applications where a reliable, leak-resistant connection between a compression fitting and a female NPT port is required. This connector features a compression inlet on one end and a 1/2-inch FNPT thread on the other, with a maximum working pressure rating of 150 psi and a temperature range of -40 degrees F to 200 degrees F. It meets D.O.T. FMVSS571.106, SAE J1131, and SAE J246 standards, making it suitable for vehicle and mobile equipment brake and fluid-system work. Licensed HVAC, plumbing, and fleet-maintenance technicians typically install this fitting where tubing must transition to a threaded port.

This connector is commonly used in compressed-air, hydraulic brake, and fuel-line plumbing on commercial vehicles, trailers, and mobile equipment where DOT-compliant fittings are required. It is also found in stationary plumbing and refrigeration line applications that require a compression-to-NPT transition. The 1/2-inch FNPT thread and 0.338-inch inside diameter make it compatible with standard 1/2-inch tube and NPT-ported components. Installations are typically completed by journeyman plumbers, HVAC technicians, or fleet mechanics following applicable SAE and DOT specifications.

Key Features

• Compression x FNPT end connections for transitioning tube to threaded port
• 1/2-inch NPTF thread standard for reliable pressure-tight engagement
• 150 psi maximum working pressure rating
• Operating temperature range: -40 degrees F to 200 degrees F
• Brass construction for corrosion resistance in air, fuel, and fluid service
• Meets D.O.T. FMVSS571.106, SAE J1131, and SAE J246 standards

Compatibility

Designed as an OEM-style compression-to-FNPT connector for use in DOT-compliant brake, air, and fluid-line systems on vehicles and mobile equipment where 1/2-inch NPTF-ported connections and compression tube fittings are specified.

Installation Notes

Installation should be performed by a qualified technician familiar with compression fitting assembly and NPT thread sealing practices. De-pressurize and drain the system completely before removing or installing any fitting. Use an appropriate thread sealant on the NPTF threads and verify the compression sleeve and nut are correctly seated before pressurizing. Installations on DOT-regulated vehicle brake systems must comply with applicable federal motor vehicle safety standards.