Parker 43F-6-8 Brass Flare to Solder Fitting 3/8 in Od

Product Description

The PARKER 43F-6-8 is a brass flare-to-solder tube fitting designed for use in refrigeration, HVAC, and plumbing systems where a 45-degree SAE flare connection must transition to a soldered joint. The fitting accepts 3/8-inch tube OD on the flared end and uses a 5/8-18 UNF thread. It is rated for a maximum working pressure of 1000 psi and a maximum working temperature of 250 degrees F (121 degrees C). The compact overall length of 1.23 inches makes it well suited for tight installation spaces. Licensed HVAC technicians and plumbers are the primary installers of this fitting type.

This fitting is commonly used in residential and light commercial HVAC and refrigeration applications where copper tubing connections require a reliable, leak-free transition between a flared tube end and a soldered joint. Its 45-degree flare angle conforms to SAE J512 and SAE J513 standards, making it a standard-geometry fitting appropriate for use with compatible SAE-spec flare assemblies. The 3/8-inch tube OD dimension is a common size found in suction and liquid line assemblies as well as various plumbing branch connections.

Key Features

• 45-degree SAE flare angle per SAE J512 and SAE J513
• Flare-to-solder end connection for mixed-joint tube assemblies
• Brass construction for corrosion resistance and machinability
• Rated to 1000 psi maximum working pressure
• Rated to 250 degrees F (121 degrees C) maximum working temperature
• UL Listed; meets SAE J512, SAE J513 standards

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8-inch OD copper tube assemblies using 45-degree SAE flare connections with a 5/8-18 UNF thread, typical in residential and light commercial HVAC and refrigeration systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Isolate and recover any refrigerant or depressurize the system fully before disassembling existing fittings. The solder end requires proper flux application and a clean, deburred tube before sweating; the flare end must be formed with a calibrated flaring tool to SAE specification to ensure a leak-free seat. Do not overtighten the flare nut, as brass fittings are susceptible to thread damage and seat deformation.