The GRACO 198391 is a retainer nut, typically used to secure components such as spray tips or gaskets within GRACO spray equipment. Its material is not specified in available documentation, but retainer nuts in similar GRACO products are commonly made from durable metals or alloys for longevity and reliability. Its intended use is to ensure proper assembly and secure fitment of critical parts in GRACO spray systems.

Key Features:

• Retainer Nut
• Compatible with select GRACO spray equipment; consult manual for specific models
• Secures spray tips and gaskets
• Designed for easy installation and removal
• Supports reliable equipment operation

Applications:
Used in GRACO spray systems to secure spray tips, gaskets, and other components, ensuring proper function and safety during operation.

Installation Notes:

• Using genuine GRACO retainer nuts ensures proper fit, safety, and optimal performance of spray equipment.
• Ensure threads are clean and undamaged before installation
• Hand-tighten the retainer nut, then use appropriate tools to secure without over-torquing
• Inspect the nut and mating surfaces for wear or damage during routine maintenance
• Replace retainer nuts if they show signs of wear or damage to prevent leaks or equipment failure
• Regularly inspect retainer nuts for wear or damage
• Clean threads and mating surfaces during maintenance
• Replace with genuine GRACO parts as needed