The GRACO 556408 is a steel hex shoulder nipple fitting designed for connecting tubing and piping in GRACO® lubricating systems. It features a straight design with 1/4 in NPT male threads on one end and 1/8 in NPT male threads on the other, providing a secure and reliable connection for fluid transfer applications.

Key Features:

• Hex Shoulder Nipple
• 1/4 in x 1/8 in threads
• Steel
• Designed for use with GRACO® lubricating systems
• Durable steel construction for long service life
• Hex shoulder for easy installation and removal with standard tools
• Engineered for reliable performance in demanding industrial environments

Applications:
Used in GRACO® lubrication systems for connecting tubing and piping in various industrial, mining, and agricultural equipment.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your lubrication system.
• Ensure threads are clean and free of debris before installation
• Use appropriate thread sealant or tape as recommended by GRACO
• Tighten securely using a wrench on the hex shoulder to avoid damage to the threads
• Regularly inspect for leaks or wear
• Replace if damaged or showing signs of corrosion