Pro-source 2555603965PRO Push-to-connect M5 Metric Fitting

Product Description

The PRO-SOURCE 2555603965PRO is a push-to-connect tube fitting with an M5 metric thread connection, constructed from nickel-plated brass for corrosion resistance in wet and pneumatic environments. It accepts tubing with a 3 mm outside diameter and is rated to 250 psi, making it suitable for compressed air and water service lines. The Buna-N O-ring provides a reliable seal across a wide range of operating conditions. Licensed plumbers, pipefitters, and pneumatic system technicians install this type of fitting in light industrial, commercial, and mechanical service applications where quick, tool-free tube connections to metric-threaded ports are required.

This fitting is designed for use in compressed air distribution systems and water lines where an M5 metric thread port must be joined to small-diameter tubing. It is well suited to pneumatic control panels, instrumentation lines, and fluid transfer assemblies that specify 3 mm OD tubing. Each package contains 5 fittings, making it practical for multi-connection installations or stocking purposes. It is appropriate for both new installation and maintenance replacement work in residential and light commercial mechanical systems.

Key Features

• Push-to-connect design allows tool-free tube insertion and quick disconnection
• M5 metric thread port for direct connection to metric-threaded manifolds and valves
• Nickel-plated brass construction resists corrosion in air and water service
• Buna-N O-ring seals for reliable, leak-resistant performance
• Rated to 250 psi for standard compressed air and water line pressures
• Accepts 3 mm OD tubing for compatibility with common small-bore pneumatic lines

Compatibility

Designed for use with compressed air and water systems utilizing 3 mm OD tubing and M5 metric thread ports, consistent with light industrial pneumatic and fluid control applications.

Installation Notes

Installation is performed by plumbers, pipefitters, or pneumatic system technicians. Depressurize and isolate the system before removing any existing fittings or inserting new tubing. Ensure tubing is cut cleanly and squarely to the correct length before pushing it fully into the fitting until it seats against the internal collet. Verify there are no leaks by pressurizing the system gradually after installation.