The GRACO 105689 is a machine hex nut, typically made from metal, designed for use as a fastening component within GRACO industrial equipment such as paint sprayer pumps and warm melt supply systems. Its primary function is to secure parts together in GRACO machinery.

Key Features:

• Nut, Machine Hex
• M4 (as referenced in GRACO manuals)
• Compatible with GRACO industrial equipment, including paint sprayer pumps and warm melt supply systems
• Standard hex design for easy installation and removal
• Compact size for integration into tight spaces
• Reliable fastening for critical equipment components

Applications:
Used as a fastening component in GRACO industrial equipment, such as paint sprayer pumps and warm melt supply systems, to secure internal parts and ensure reliable operation[3][5].

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and reliability, reducing the risk of equipment failure or downtime.
• Ensure the nut is tightened to the manufacturer's recommended torque specifications
• Inspect the nut and mating surfaces for wear or damage before installation
• Use appropriate tools to avoid stripping or damaging the nut
• Regularly check for loosening or wear during routine maintenance
• Replace the nut if signs of corrosion or damage are present