The GRACO 131476 is a lock nut with a hexagonal head, designed for secure fastening in GRACO equipment. Its material is not explicitly stated in available listings, but it is typically made from steel or stainless steel for durability and corrosion resistance. This part is intended to prevent loosening of threaded connections in GRACO spray equipment and related machinery.

Key Features:

• Lock Nut
• M4 (metric thread, 4mm diameter)
• Designed for use with GRACO spray equipment and compatible with M4 threaded fasteners
• Hexagonal head for easy installation and removal with standard tools
• Locking feature to prevent loosening under vibration or movement
• Reliable performance in demanding industrial environments

Applications:
Used in GRACO spray equipment and machinery where secure, vibration-resistant fastening is required. Suitable for industrial, agricultural, and maintenance applications.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and reliability, reducing the risk of equipment failure or downtime.
• Ensure threads are clean and undamaged before installation
• Tighten to the recommended torque for M4 fasteners
• Inspect regularly for signs of wear or loosening
• Periodically check tightness, especially in high-vibration environments
• Replace if the locking feature is compromised or if there is visible damage