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

Product Description

The PARKER 43F-6-6 is a brass flare-to-solder tube fitting designed for refrigeration, HVAC, and plumbing line connections where a 45-degree SAE flare meets a soldered copper tube end. The fitting accepts a 3/8-inch tube OD on the flare side 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). Overall length is 1.17 inches and the unit weighs 0.06 pounds. HVAC technicians and plumbers install this fitting when transitioning between flared and soldered copper connections in refrigerant or fluid service lines.

This fitting is suited for residential and light commercial HVAC systems, refrigeration equipment, and plumbing assemblies that require a reliable flare-to-solder transition. It is commonly installed on suction or liquid lines, copper tube assemblies, and service valve connections where SAE 45-degree flare fittings are specified. It meets SAE J512 and SAE J513 standards and carries a UL Listing, making it appropriate for use in code-compliant installations.

Key Features

• 45-degree SAE flare connection on one end, solder-cup connection on the other for a secure tube-to-tube transition
• Rated to 1000 psi maximum working pressure for demanding refrigerant and fluid service applications
• Maximum working temperature of 250 degrees F (121 degrees C)
• 5/8-18 UNF thread size per SAE J512 and SAE J513 standards
• UL Listed construction for use in code-compliant systems
• Compact overall length of 1.17 inches for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems specifying a 3/8-inch OD SAE 45-degree flare-to-solder connection with a 5/8-18 UNF thread per SAE J512 and SAE J513.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Depressurize and recover any refrigerant or drain the fluid system completely before disconnecting existing fittings. The flare side requires a properly formed 45-degree flare on the copper tube; use a calibrated flaring tool to avoid leaks at the joint. The solder end should be cleaned, fluxed, and brazed or soldered using appropriate alloy per local mechanical codes before recharging or repressurizing the system.