The GRACO 100079 is a lock washer with spring, typically made from metal, designed to secure fasteners and prevent loosening due to vibration or movement within GRACO equipment. Its primary function is to maintain the integrity of bolted connections in pumps and related assemblies.

Key Features:

• Washer, lock, spring
• Compatible with GRACO equipment requiring lock washers, especially in tank feed systems and pump assemblies
• Prevents fastener loosening
• Reliable under vibration
• Simple installation and maintenance

Applications:
Used in GRACO tank feed systems, pump assemblies, and other equipment where secure bolted connections are essential to prevent loosening due to vibration or operational movement[5].

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and reliability, reducing the risk of equipment failure or downtime.
• Install between the nut and the surface to be secured
• Ensure the washer is seated flat against the surface
• Tighten the nut to the recommended torque for the application
• Inspect lock washers during routine maintenance for signs of wear or deformation
• Replace if damaged or if the fastener becomes loose