Parker A6BU6-MG Bulkhead Union 3/8 Inch Od Tube Fitting

Product Description

The PARKER A6BU6-MG is a push-to-connect bulkhead union tube fitting designed to join two tube runs through a panel or bulkhead wall without tools. Constructed from polyoxymethylene (POM), a rigid acetal thermoplastic known for its chemical resistance and dimensional stability, this fitting handles system pressures up to 300 psi. It accepts 3/8 inch OD tubing on both ends and locks tubing in place with a single push, enabling fast, repeatable connections during equipment assembly or panel installation. Plumbers, HVAC technicians, and fluid-system assemblers regularly use fittings of this type in instrumentation, pneumatic, and light fluid-handling lines.

This bulkhead union is suited for residential and light commercial applications where tubing must pass cleanly through a panel, enclosure wall, or equipment cabinet. Typical installation scenarios include pneumatic control lines, instrument air circuits, water treatment equipment, and HVAC condensate or refrigerant sampling systems where a secure, leak-free tube-through-bulkhead connection is required. The POM body resists many common hydraulic fluids, water, and mild chemical solutions.

Key Features

• Push-to-connect design — no tools or clamps required for tube insertion
• Accepts 3/8 inch OD tubing on both ends for a straight-through bulkhead connection
• Rated to 300 psi working pressure
• Polyoxymethylene (POM) body provides strong chemical and moisture resistance
• Tan color finish for quick field identification
• Compact, lightweight design at 0.04 pounds per unit

Compatibility

Designed as an OEM-style push-to-connect replacement or new-installation fitting for systems using 3/8 inch OD tubing routed through panel walls or bulkhead surfaces.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or instrumentation technicians. Before installing, depressurize and isolate the tubing circuit completely. Ensure tube ends are cut square and deburred for a proper seal. To release tubing, depress the collet ring and pull the tube free — do not force or torque the fitting body during removal.