Parker 48F-3-4 Brass Flared Tube Connector 3/16 in

Product Description

The PARKER 48F-3-4 is a brass flared tube connector designed for use in fluid and gas line assemblies requiring a secure, leak-resistant connection. It features a 45-degree flare end on one side and a male NPTF threaded end on the other, creating a Flare x MNPTF configuration. The connector accepts 3/16 inch tube OD and uses a 1/4-18 thread size. Rated for a maximum working pressure of 1900 psi and a maximum working temperature of 250 degrees F, this fitting is built for demanding service conditions. Licensed plumbers, HVAC technicians, and refrigeration technicians typically install this type of connector in copper or aluminum tubing systems.

This connector is suited for residential and light commercial applications where flared tube connections must transition to NPT-threaded ports. Typical install scenarios include refrigeration line sets, hydraulic circuits, fuel lines, and pneumatic systems where a 3/16 inch flared tube must mate to a 1/4-18 NPTF male port. Its compact overall length of 1.17 inches makes it practical in tight spaces. The brass construction provides good corrosion resistance across a wide range of media. It meets SAE J512, SAE J513, and UL Listing standards, confirming its suitability for regulated installations.

Key Features

• 45-degree flare angle conforms to SAE J512 and SAE J513 standards
• Flare x MNPTF end configuration for tube-to-threaded-port transitions
• Rated to 1900 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• Brass construction for corrosion resistance across common refrigerant, fuel, and hydraulic media
• UL Listed for use in applicable regulated systems

Compatibility

Designed as an OEM-style replacement or direct-install fitting for fluid and gas systems requiring a 3/16 inch OD flared tube connection to a 1/4-18 NPTF male threaded port.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or refrigeration mechanic. Shut off all system pressure and depressurize the line before disassembly or fitting installation. Use a properly sized flaring tool to prepare the tube end to the correct 45-degree flare geometry before seating the fitting. Do not over-torque the flare nut, as brass fittings are susceptible to deformation at the flare seat.