Eaton 202X5X4 Brass Inverted Male Flare Connector 5/16 in

Product Description

The EATON 202X5X4 is a brass inverted male flare connector designed for use in hydraulic, refrigeration, and fluid-transfer tubing systems. It features a 45-degree flare seat on the tube end and a male NPT thread on the pipe end, creating a Flare x MNPT connection. The fitting accepts 5/16-inch tube OD and is rated for a maximum working pressure of 2000 psi and a maximum working temperature of 250 degrees F. Machined from brass, it provides reliable corrosion resistance in low-pressure and medium-pressure fluid lines. Licensed HVAC technicians, plumbers, and refrigeration mechanics are the primary installers of this fitting type.

This connector is suited for residential and light commercial applications where tubing must terminate into a threaded port using an inverted flare seal. Typical install scenarios include refrigerant line connections, fuel lines, and hydraulic control circuits. The inverted flare design creates a positive metal-to-metal seal that resists vibration loosening in mobile and stationary equipment. Compatibility with SAE, MS, and ASME standards makes this fitting appropriate for a wide range of OEM and service applications where 45-degree inverted flare tubing is already in use.

Key Features

• 45-degree inverted flare seat provides a metal-to-metal seal without soft goods
• Flare x MNPT end configuration for direct tube-to-pipe-thread connections
• Rated to 2000 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• Brass construction resists corrosion in fluid and refrigerant service
• Meets SAE, MS, ASA, and ASME standards

Compatibility

Designed as an OEM-style replacement or service fitting for tubing systems using 5/16-inch OD tube with a 45-degree inverted flare seat and a 1/4-inch NPT male pipe thread outlet.

Installation Notes

Installation should be performed by a licensed HVAC technician, plumber, or refrigeration mechanic. Shut off and depressurize the system completely before removing or installing any fitting. Hand-tighten the flare nut to seat the flare, then use a fitting wrench to achieve a snug, leak-free connection without overtightening the brass threads. Verify that the mating tube end has been properly flared to a 45-degree inverted profile before assembly.