The GRACO 120866 is an internal tooth lock washer designed for use in GRACO equipment. It is typically made from steel and serves to prevent loosening of fasteners due to vibration or torque, ensuring secure assembly and reliable operation of machinery.

Key Features:

• Internal Tooth Lock Washer
• #8
• Steel (assumed, not explicitly stated)
• Designed for use with GRACO equipment; compatible with #8 screws
• Internal teeth provide secure locking action
• Helps prevent fastener loosening due to vibration or torque
• Simple, reliable design for ease of installation and maintenance

Applications:
Used in the assembly and maintenance of GRACO fluid handling and lubrication equipment, ensuring fasteners remain securely tightened in high-vibration environments.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and reliability, reducing the risk of equipment failure or downtime.
• Place the washer between the fastener head and the surface to be secured
• Ensure the internal teeth are facing the fastener head for optimal locking performance
• Tighten the fastener to the recommended torque for the application