Description
The GRACO 556649 is a brass tube nut designed for use with 3/16 inch (4.8 mm) tubing. It serves as a fitting to securely connect tubing within GRACO equipment, particularly in lubrication and fluid transfer systems.
Key Features:
- Nut Fitting
- 3/16 inch (4.8 mm)
- Brass
- For use with 3/16 inch (4.8 mm) tubing
- Durable brass construction
- Reliable sealing for tubing connections
- Ease of installation and maintenance
Applications:
Used in lubrication and fluid transfer systems for various industrial and vehicle service applications.
Installation Notes:
- Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within GRACO equipment.
- Ensure tubing is cut cleanly and squarely before installation
- Hand-tighten the nut to avoid over-torquing and potential damage
- Check for leaks after installation and tighten further if necessary
- Regularly inspect fittings for signs of wear or leaks
- Replace fittings if damage or excessive wear is detected






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