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Graco 557503 Gasket, Cu .390 X .078

Copper sealing gasket engineered to create a leak-resistant connection and maintain reliable fluid system pressure in compatible Graco equipment.

  • Graco Part Number: 557503
  • Copper construction for dependable sealing
  • Dimensions: 0.390 in. × 0.078 in.
  • Compatible with Graco equipment specifying Part 557503

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Copper Sealing Gasket for Leak-Free Fluid Connections

Compatible Machines Application
Selected Graco Reactor proportioners and spray foam systems requiring Part 557503 Fluid sealing connection
Compatible Graco Fusion spray gun assemblies using the specified gasket Fluid path maintenance
Graco equipment that lists OEM Part No. 557503 in the parts manual Replacement sealing gasket

Product Overview

The Graco 557503 Gasket, Cu .390 X .078 is a genuine OEM copper sealing gasket designed to create a reliable seal between mating components in compatible Graco fluid systems. Manufactured from copper for excellent sealing characteristics, it helps prevent fluid leaks while maintaining consistent operating pressure during demanding spray applications.

Key Features

  • Genuine Graco OEM replacement gasket.
  • Copper construction for dependable sealing performance.
  • Dimensions: 0.390 in. × 0.078 in.
  • Helps reduce fluid leakage at threaded sealing points.
  • Designed for Graco equipment specifying Part 557503.

Why Replace the Gasket?

Replacing worn or compressed copper gaskets during maintenance helps preserve sealing integrity, maintain proper system pressure, and reduce the risk of leaks. Using the correct OEM gasket ensures proper fit and reliable performance in compatible Graco equipment.

Frequently Asked Questions

It forms a dependable seal between connected components, helping prevent fluid leaks and maintain operating pressure.

It is compatible with Graco equipment that specifically lists OEM Part 557503, including selected Reactor systems and Fusion spray gun assemblies. Always verify your equipment's parts manual before ordering.

Copper provides excellent sealing properties, conforms well to mating surfaces, and withstands demanding operating conditions, making it ideal for fluid sealing applications.

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