Parker 661FHD-12-10 Brass Male to Female Flare Fitting

Product Description

The PARKER 661FHD-12-10 is a brass male flare to female flare tube fitting designed for use in refrigeration, HVAC, and fluid-handling systems where a reliable 45-degree flared connection is required. It accepts a 3/4 inch tube OD on the male end and a 5/8 inch tube OD on the female end, with a 7/8-14 UNF thread and a reduced thread size of 1-1/16-14. Constructed from brass, this fitting handles working pressures up to 650 psi and temperatures up to 250 degrees F, making it well-suited for refrigerant lines and hydraulic circuits in demanding trade applications. Licensed HVAC technicians and plumbers are the typical installers.

This fitting is used in residential and light commercial HVAC systems, refrigeration equipment, and fluid lines where a flare-to-flare transition between two different tube sizes is needed. The 45-degree flare profile conforms to SAE J512 and SAE J513 standards, and the fitting carries a UL Listing, making it appropriate for installations governed by those requirements. Its compact overall length of 1.86 inches suits tight equipment bays and panel installations where clearance is limited.

Key Features

• Brass construction for corrosion resistance in refrigerant and fluid service
• 45-degree flare angle compliant with SAE J512 and SAE J513
• Male flare to female flare end connections for inline tube-size reduction
• Rated to 650 psi maximum working pressure
• UL Listed for use in code-compliant installations
• Compact 1.86 inch overall length for space-restricted installs

Compatibility

Designed as an OEM-style flare fitting for HVAC, refrigeration, and fluid-handling systems using 45-degree SAE flare connections with 3/4 inch and 5/8 inch tube OD lines.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Shut off and recover all refrigerant or depressurize the fluid system completely before disconnecting or connecting any flare fitting. Use a calibrated flaring tool to produce clean, properly seated 45-degree flares on both tube ends before tightening to prevent leaks. Avoid over-tightening, which can crack brass flare seats; tighten by hand first, then snug with a flare wrench.