Parker 159F-10-6 Brass Male 45 Elbow 5/8 Od 3/8-18 Nptf

Product Description

The PARKER 159F-10-6 is a brass male 45-degree flared tube elbow fitting designed to connect a 5/8-inch OD flared tube to a male NPTF threaded port. The fitting uses a Flare x MNPTF end configuration with a 3/8-18 thread size, providing a secure, leak-resistant joint when properly assembled. Rated to 650 psi maximum working pressure and 250 degrees F maximum working temperature, this elbow is well-suited for hydraulic, refrigeration, and fluid-transfer lines where a directional change is required. Licensed plumbers, HVAC technicians, and pipefitters are the primary installers of this type of fitting.

This fitting is used in residential and light commercial applications wherever a 45-degree directional change is needed between a flared tube line and an NPTF-threaded port. Common install scenarios include refrigerant line sets, hydraulic systems, fuel lines, and general fluid-transfer assemblies that demand reliable metal-to-metal sealing under pressure. The brass construction offers good corrosion resistance across a broad range of media compatible with brass alloys.

Key Features

• 45-degree flared elbow provides directional routing without field bending of tubing
• Flare x MNPTF end connection — 5/8-inch OD flare end mates to 3/8-18 male NPTF threads
• Rated to 650 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• Meets SAE J512, SAE J513, and UL Listing standards
• Brass construction for corrosion resistance in fluid-transfer service

Compatibility

Designed for use with 5/8-inch OD flared tubing and 3/8-18 NPTF threaded ports in hydraulic, refrigeration, fuel, and general fluid-transfer systems requiring a 45-degree male elbow fitting.

Installation Notes

This fitting should be installed by a licensed HVAC technician, plumber, or pipefitter familiar with flare-fitting assembly and NPTF thread engagement. Always depressurize and evacuate the system before removing or installing fittings. Ensure the flared tube end is properly formed to the correct 45-degree SAE flare angle before assembly to achieve a leak-free metal-to-metal seal. Apply appropriate thread sealant compatible with the system media on the NPTF threads, and verify the completed joint for leaks before returning the system to service.