Parker A5EU5-MG Push-to-connect Union 5/16 Inch Od

Product Description

The PARKER A5EU5-MG is a push-to-connect union tube fitting designed for tube-to-tube connections in pneumatic and fluid-handling systems. Built from polyoxymethylene (POM), a rigid acetal thermoplastic known for its chemical resistance and dimensional stability, this fitting accepts 5/16 inch outside diameter tubing on both ends. It is rated to 300 psi, making it suitable for moderate-pressure pneumatic lines. Installation requires no tools for tube insertion, which reduces assembly time in control panels, automation equipment, and light industrial plumbing runs. Plumbers, HVAC technicians, and automation specialists are the typical installers.

This union fitting is suited for straight-line tube splices in compressed air, inert gas, and compatible fluid lines where a secure, removable connection is needed. The push-to-connect design allows the tubing to be released for service or rerouting without cutting. Typical applications include pneumatic control circuits, instrument air lines, and OEM equipment assemblies using 5/16 inch OD tubing.

Key Features

• Push-to-connect design — no tools required for tube insertion or release
• Rated to 300 psi working pressure
• Polyoxymethylene (POM) construction for chemical resistance and rigidity
• Accepts 5/16 inch OD tubing on both ports
• Tan color body for quick visual identification
• Compact union configuration for in-line tube splices

Compatibility

Designed as an OEM-style push-to-connect union for use with 5/16 inch outside diameter tubing in pneumatic and compatible fluid-handling systems.

Installation Notes

This fitting is installed by plumbers, pipefitters, and automation technicians working on pneumatic or low-pressure fluid lines. Before servicing any line, depressurize and isolate the system completely. Ensure tubing ends are cut square and deburred before insertion to achieve a proper seal. Consult applicable codes such as the IPC or equipment manufacturer guidelines for pressure system assembly requirements.