Parker 145F-5-4 Brass Flared Male Branch Tee 5/16 in

Product Description

The PARKER 145F-5-4 is a brass male branch tee fitting designed for flared tube connections in refrigeration, HVAC, and fluid-handling systems. It accepts 5/16-inch OD tubing on the flare ends and connects to a 1/4-18 NPTF male threaded port, allowing a branch takeoff from a main tubing run. The 45-degree flare angle conforms to SAE J512 and SAE J513 standards. Rated to 1200 psi maximum working pressure and 250 degrees F, this fitting is suited for moderate-pressure gas and liquid service. HVAC technicians and refrigeration mechanics are the primary installers.

This fitting is used wherever a branch connection must be made in a flared tubing circuit — common in residential and light commercial HVAC refrigerant lines, fuel gas lines, and hydraulic or pneumatic circuits that use SAE 45-degree flare connections. The male NPT branch port threads into a tapped boss or manifold fitting, while the two flare ports continue the main tubing run. Its compact brass construction keeps weight low at 0.1 pounds, making it practical in tight equipment cabinets and coil sections.

Key Features

• 45-degree SAE flare ends conform to SAE J512 and SAE J513 standards
• 1/4-18 NPTF male thread provides a pressure-tight mechanical seal without sealant tape
• Rated to 1200 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• Brass construction resists corrosion in refrigerant, fuel gas, and fluid service
• UL Listed

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using SAE 45-degree flare tubing connections with 5/16-inch OD tubing and 1/4-18 NPTF male branch ports.

Installation Notes

Installation is performed by licensed HVAC technicians, refrigeration mechanics, or plumbers working with flared tubing systems. De-pressurize and recover any refrigerant or fluid from the circuit before disassembling or installing fittings. Use a calibrated flaring tool to produce a clean, crack-free 45-degree flare seat — a poor flare is the most common cause of leaks at this connection type. Apply thread sealant rated for the service fluid on the NPTF threads only; do not apply sealant to the flare seats.