The GRACO 150513 is a jam hex nut, typically made from steel or another durable metal, designed to secure components within GRACO fluid handling and spray equipment. Its primary function is to lock threaded fasteners in place, preventing loosening due to vibration or movement.

Key Features:

• Jam Hex Nut
• 7/16"
• Compatible with GRACO equipment models requiring a 7/16" jam nut (e.g., Model 206661, Ultra 433/333/400, Ultra Plus+ 1500)
• Designed for secure fastening and vibration resistance
• Standard hex design for easy installation with common tools
• Reliable performance in high-vibration environments

Applications:
Used in GRACO high-pressure fluid regulators, airless paint sprayers, and other fluid handling equipment where secure fastening is required.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and safety within GRACO equipment, reducing the risk of equipment failure or leaks.
• Ensure threads are clean and undamaged before installation
• Tighten securely but avoid over-torquing to prevent thread stripping
• Inspect regularly for signs of wear or loosening, especially in high-vibration applications