The GRACO 551396 is a spring made from music wire, designed for use in GRACO equipment such as spray gun handles and valve assemblies. Its primary function is to provide reliable spring force and return action within the equipment.

Key Features:

• Spring
• .26 x .37 x .51 (dimensions likely refer to wire or spring cross-section and length; exact interpretation may vary)
• Music wire (ASTM A228), high carbon spring steel
• Compatible with select GRACO spray gun handles and valve assemblies (e.g., GX-16, MD2 Valve)
• High tensile strength
• Excellent fatigue life
• Durable and reliable for repeated cycles
• Cold-drawn for consistent performance

Applications:
Used in GRACO spray gun handles and valve assemblies to ensure proper trigger return and valve actuation.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment.
• Always disconnect equipment from power and pressure sources before installation.
• Refer to the specific equipment manual for detailed installation instructions.
• Inspect the spring for damage or wear before installation.
• Ensure proper alignment and seating of the spring within the assembly.
• Regularly inspect springs for signs of fatigue or deformation.
• Replace springs as part of routine maintenance or if performance issues arise.
• Keep spare springs on hand for critical applications.