Parker 48F-6-4 Brass Flared Tube Connector 3/8 in Od

Product Description

The PARKER 48F-6-4 is a brass flared tube connector designed for use in refrigeration, HVAC, and fluid-handling systems where a leak-free mechanical joint is required between a flared tube and a male pipe thread. The fitting connects a 3/8-inch OD flared tube to a 1/4-18 NPTF male thread using a 45-degree flare angle per SAE J512 and SAE J513 standards. Rated to 1000 psi maximum working pressure and 250 degrees F maximum working temperature, this connector is built for demanding service conditions. It is installed by HVAC technicians, refrigeration mechanics, and plumbers working on copper or compatible metal tubing systems.

This connector is suited for residential and light commercial HVAC, refrigeration piping, pneumatic lines, and hydraulic applications where a Flare x MNPTF end configuration is required. The 45-degree flare interface provides a metal-to-metal seal that resists vibration loosening and eliminates the need for thread sealant on the flare end. Typical installations include suction and liquid line connections, instrument tubing assemblies, and compressed air or gas distribution systems that call for a 3/8-inch OD flared tube terminating to a 1/4-18 pipe thread port.

Key Features

• 45-degree flare angle conforms to SAE J512 and SAE J513 standards
• 1000 psi maximum working pressure for demanding fluid and gas service
• 250 degrees F maximum working temperature rating
• NPTF thread standard provides a dry-seal pipe thread connection
• Brass construction offers corrosion resistance compatible with copper and brass tubing systems
• UL Listed for use in applicable listed systems

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems requiring a 3/8-inch OD flared tube to 1/4-18 NPTF male pipe thread connection with a 45-degree flare angle.

Installation Notes

Installation should be performed by a qualified HVAC technician, refrigeration mechanic, or licensed plumber. De-energize and depressurize the system completely before servicing any fittings. Ensure the tube end is cut cleanly, deburred, and properly flared to a 45-degree angle using a calibrated flaring tool before making the connection. Do not overtighten the flare nut, as this can distort the flare seating surface and cause leaks.