The GRACO 186993 is a piston stud made from stainless steel, designed to secure and position the piston assembly within GRACO airless spray pumps such as the President 10:1 and Monarch 5:1 models. It is a critical component for maintaining proper piston alignment and function during operation.

Key Features:

• Piston Stud
• For 10:1 President / 5:1 Monarch Airless Spray Pumps
• Stainless Steel
• GRACO President 10:1 and Monarch 5:1 Airless Spray Pumps
• Durable stainless steel construction for corrosion resistance
• Essential for proper piston assembly and alignment
• Designed for professional, severe-duty applications

Applications:
Used in professional airless spray pumps for transferring or dispensing low viscosity sealants and adhesives. Suitable for industrial, commercial, and maintenance environments.

Installation Notes:

• Using a genuine GRACO piston stud ensures proper fit, function, and longevity of the pump assembly. Non-genuine parts may compromise performance and safety.
• Follow the equipment manual for specific installation instructions
• Ensure all components are clean and free of debris before assembly
• Apply thread lubricant or sealant as recommended in the manual
• Torque to manufacturer specifications (e.g., 50–70 ft-lb for similar studs in GRACO pumps)
• Inspect for wear or damage during routine maintenance