Parker P00004 Push-to-connect Union Fitting 1/4 in Od

Product Description

The PARKER P00004 is a push-to-connect union tube fitting designed for tube-to-tube connections in pneumatic and fluid transfer applications. Constructed from brass, it accepts 1/4 inch OD tubing on both ends and holds a maximum working pressure of 250 psi. The push-to-connect design allows for fast, tool-free tube insertion and secure retention without ferrules or compression sleeves. Licensed HVAC technicians, plumbers, and fluid system installers use this fitting where quick, reliable tube joins are needed in tight spaces or high-cycle service environments.

This fitting is suited for residential and light commercial systems where brass construction and nitrile O-ring sealing are appropriate — including pneumatic control lines, refrigeration ancillary tubing, and low-pressure fluid circuits. It is rated for temperatures from -40 degrees F to 200 degrees F, making it viable for both cold and moderately high-temperature service runs. The fitting ships in a package quantity of five units, with a minimum order quantity of one package.

Key Features

• Push-to-connect design for tool-free, fast tube insertion and removal
• Brass body construction for corrosion resistance in fluid and pneumatic service
• Nitrile O-ring seal rated for broad chemical compatibility and temperature range
• 250 psi maximum working pressure for reliable performance in pressurized lines
• Temperature range of -40 degrees F to 200 degrees F covers most trade applications
• Meets D.O.T. FMVSS571.106, SAE J2494, and SAE J2494-3 standards

Compatibility

Designed for use with 1/4 inch OD tubing in tube-to-tube union configurations. Compliant with D.O.T. FMVSS571.106, SAE J2494, and SAE J2494-3, confirming suitability for fluid and pneumatic systems requiring certified push-to-connect fittings.

Installation Notes

Installation is performed by cutting tubing square and clean, then inserting the tube end firmly into the fitting body until it seats fully — no tools required for connection. Before servicing or replacing any fitting in a pressurized line, relieve all system pressure and shut off the fluid or air supply. Inspect tubing OD for scratches or out-of-round deformation that could compromise the O-ring seal before insertion. Follow applicable plumbing or pneumatic system codes for the installation jurisdiction.