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Graco 188627 Washer Back-Up

The Graco 188627 Washer Back‑Up reinforces seals and prevents extrusion under pressure for longer service life.

  • OEM back‑up washer
  • Supports seals under load
  • Prevents seal deformation

$16.82
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Graco 188627 Washer Back‑Up for Seal Support

Compatible Machines

  • Graco pump and valve assemblies
  • Fluid control packing systems

The Graco 188627 Washer Back‑Up provides reinforcement for seals and packings, helping them resist deformation and extrusion under pressure. This improves reliability and extends component life.

Key Features

  • OEM construction for precise fit
  • Improves sealing integrity
  • Reduces premature seal wear
  • Designed for high‑pressure operation

Installation & Usage Tips

  • Fit washer behind the seal as per assembly order.
  • Ensure washer sits flat and centered.
  • Replace with seals for best performance.

Frequently Asked Questions

It supports seals to prevent extrusion and maintain pressure integrity.

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