The GRACO 556647 is a brass union fitting designed for connecting 3/16 inch (4.8 mm) tubing in on-road vehicle lubrication systems. It is intended for use with oil and grease, providing a reliable and durable connection within automatic lubrication equipment.

Key Features:

• Union
• 3/16 in. (4.8 mm) Tube
• Brass
• Oil, Grease
• Durable brass construction for longevity
• Reliable connection for demanding vehicle environments
• Ease of maintenance and replacement

Applications:
On-road vehicle automatic lubrication systems, specifically for oil and grease delivery.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within lubrication systems.
• Ensure tubing is clean and free of debris before installation
• Hand-tighten fitting and use appropriate tools to avoid over-tightening
• Inspect for leaks after installation and during routine maintenance
• Regularly inspect fittings for wear or damage
• Replace fittings at the first sign of leakage or corrosion
• Follow manufacturer guidelines for lubrication system maintenance