Parker 664fhd-8-8 Sae 45 Flare X Npt Adapter

Product Description

The PARKER 664fhd-8-8 is a female SAE 45-degree flare to male NPT pipe adapter designed for connecting flare-type refrigerant or fluid lines to standard NPT-threaded pipe fittings. This fitting serves as a transition point between two common connection standards found throughout HVAC, refrigeration, and plumbing systems. The 664FHD series adapter provides a leak-resistant mechanical joint by seating the SAE 45-degree flare against a matching flare seat on the female end while threading directly into an NPT-tapped port or fitting on the male end. Licensed HVAC technicians and plumbers install this type of adapter during system assembly, retrofit, or repair work where two different thread or connection standards must be joined.

This adapter is suited for use in residential and light commercial HVAC and refrigeration applications where SAE 45-degree flare connections interface with NPT-threaded components such as valves, manifolds, or service ports. It is also appropriate for plumbing and fluid-handling systems that use flare-to-pipe transitions. The fitting is referenced as equivalent to SAE specification 010106 and is compatible with the 664FHD series fitting standard. Installers working on refrigerant lines, oil lines, or water lines will encounter this type of adapter in both new construction and service scenarios.

Key Features

• Female SAE 45-degree flare inlet for secure, leak-resistant flare seat connection
• Male NPT threaded outlet for direct connection to standard pipe fittings and tapped ports
• 664FHD series equivalent construction for consistent dimensional fit
• Referenced to SAE specification 010106 for cross-reference and replacement sourcing
• Suitable for HVAC, refrigeration, and fluid-handling piping applications

Compatibility

Designed as an OEM-style replacement and equivalent fitting within the 664FHD series, referenced to SAE 010106. Suitable for use wherever a female SAE 45-degree flare to male NPT pipe adapter transition is required.

Installation Notes

This fitting is installed by licensed HVAC technicians or plumbers depending on the application. Always depressurize and evacuate the system before disconnecting or installing flare fittings on refrigerant or fluid lines. Inspect the flare seat and flare nut for damage before assembly, as a compromised flare surface will result in leaks. Follow applicable codes including ASHRAE, IFGC, or IPC guidelines for the specific system type being serviced.

Technical Specifications

• Connection Type (Inlet): Female SAE 45-degree flare
• Connection Type (Outlet): Male NPT pipe thread
• Series: 664FHD
• SAE Reference: 010106

Standard Information

• Brand: PARKER
• Manufacturer Part Number: 664fhd-8-8