Parker 48F-5-4 Brass Flared Tube Connector 5/16 in

Product Description

The PARKER 48F-5-4 is a brass flared tube connector designed for use in hydraulic, refrigeration, and fluid transfer systems where a reliable, leak-resistant connection is required. It features a 45-degree flare seat on the tube end and a male NPTF thread on the fitting end, conforming to SAE J512 and SAE J513 standards. Rated to 1,200 psi maximum working pressure and 250 degrees F, this connector handles the demands of both stationary and mobile fluid system applications. At 0.05 pounds and 1.32 inches overall length, it is a compact, single-piece fitting installed by licensed plumbers, HVAC technicians, and pipefitters.

This connector is suited for residential and light commercial applications involving copper or brass flared tubing. Typical use cases include refrigerant line connections, fuel lines, hydraulic circuits, and compressed air systems where a 5/16 inch OD tube must transition to a 1/4-18 NPTF male threaded port. The Flare x MNPTF end configuration makes it a standard adapter in system assemblies requiring a dryseal threaded connection at one end and a flared tube seat at the other.

Key Features

• 45-degree flare seat conforms to SAE J512 and SAE J513 standards
• 1,200 psi maximum working pressure for demanding fluid and refrigerant systems
• Rated to 250 degrees F maximum working temperature
• NPTF dryseal thread (1/4-18) provides a pressure-tight connection without sealant tape in many applications
• Compact overall length of 1.32 inches for tight installation spaces
• UL Listed for additional assurance in commercial and industrial installations

Compatibility

Designed for use with 5/16 inch OD flared tubing and 1/4-18 NPTF male threaded ports in fluid, refrigerant, fuel, and compressed air systems requiring SAE J512 or SAE J513 compliant fittings.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or pipefitter. Depressurize and evacuate the system completely before removing or installing any fittings. Ensure the tube end is properly flared to the correct 45-degree angle using a calibrated flaring tool before seating the fitting. NPTF dryseal threads are designed to seal on the threads themselves, but follow the system manufacturer and applicable code requirements regarding the use of thread sealant.