The GRACO 556643 is a brass female connector fitting designed to connect 5/16 in. (7.9 mm) tubing to a 1/8 in. (3.2 mm) NPT threaded port. It is intended for use in on-road vehicle lubrication systems, specifically for oil and grease applications, ensuring secure and reliable connections within GRACO equipment.

Key Features:

• Connector
• 5/16 in. (7.9 mm) Tube x 1/8 in. (3.2 mm) NPT
• Brass
• Oil, Grease; On-Road Vehicles
• Durable brass construction for longevity
• Threaded connection for secure fit
• Designed for easy installation and maintenance
• Reliable performance in lubrication systems

Applications:
Used in on-road vehicle lubrication systems for connecting tubing to threaded ports, suitable for oil and grease delivery.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within lubrication systems.
• Ensure tubing is cut cleanly and squarely before insertion
• Hand-tighten the fitting before using a wrench to avoid over-tightening
• Check for leaks after installation
• Regularly inspect for wear or damage as part of routine maintenance