The GRACO 17390-02 is a Belleville spring washer designed for use in GRACO equipment. Belleville washers are conical spring washers that provide a high load in a compact space, typically used to maintain tension or absorb shock in mechanical assemblies. The material is not specified in available listings, but Belleville washers are commonly made from steel or stainless steel for durability and corrosion resistance. This part is intended to ensure reliable performance and longevity in GRACO equipment by maintaining proper bolt tension and preventing loosening under vibration or load.

Key Features:

• Belleville spring washer
• 17390-02, .390ID (inner diameter)
• Designed for use in GRACO equipment; specific models not listed
• High load capacity in a small space
• Maintains bolt tension under vibration
• Durable construction for long service life
• Helps prevent loosening and equipment failure

Applications:
Used in GRACO equipment assemblies where maintaining bolt tension and absorbing shock or vibration is required. Suitable for industrial, agricultural, and maintenance applications where reliability and equipment longevity are critical.

Installation Notes:

• Using genuine GRACO parts ensures optimal fit, performance, and safety in equipment assemblies.
• Ensure the washer is installed with the correct orientation (convex side typically facing the bolt head or nut)
• Inspect for damage or wear before installation
• Follow torque specifications as per equipment manual
• Replace washers during routine maintenance to prevent equipment failure
• Regularly inspect Belleville washers for signs of fatigue or deformation
• Replace washers if they lose their spring characteristics
• Use only genuine GRACO parts for replacements