The GRACO 557393 is a threaded extension adapter designed to connect 1/8 inch NPT (National Pipe Thread) male to 1/8 inch NPTF (National Pipe Thread Fuel) female fittings, with a length of 1-1/4 inches. It is used as a miscellaneous adapter or fitting within GRACO lubrication systems to extend or adapt connections between components. Material is not specified.

Key Features:

• Extension adapter/fitting
• 1/8 inch NPT x 1/8 inch NPTF, 1-1/4 inch long
• Compatible with GRACO lubrication systems and other equipment using 1/8 inch NPT/NPTF connections
• Threaded for secure connection
• Compact length for tight spaces
• Reliable for use in lubrication and fluid transfer systems

Applications:
Used in GRACO automatic lubrication systems and other fluid handling equipment to extend or adapt connections between components, facilitating installation and maintenance in various industrial settings.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within GRACO systems.
• Ensure threads are clean and undamaged before installation
• Use appropriate thread sealant if required for the application
• Hand-tighten before final tightening with a wrench to avoid cross-threading
• Check for leaks after installation
• Regularly inspect for wear or damage
• Replace if threads are stripped or damaged
• Keep connections clean and free of debris