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Graco 331103 Washer Flat Round .250 ID .562 OD

The Graco 331103 Washer Flat Round is a precision washer used to ensure proper spacing, load distribution, and surface protection in Graco equipment assemblies. Designed for accurate fit and dependable performance in mechanical fastening points.

  • Part Number: 331103
  • Inner Diameter: .250 inch
  • Outer Diameter: .562 inch
  • Type: Flat Round Washer
  • Common Use: Pump, drive, and internal assembly spacing

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Graco Flat Washer – Precision Spacing & Load Distribution

The Graco 331103 Washer Flat Round is a precision-engineered flat washer designed to provide proper spacing, load distribution, and surface protection within Graco equipment assemblies. With a .250 inch inner diameter and .562 inch outer diameter, this washer is commonly used in pump, drive, and internal mechanical assemblies where accurate fit and durability are essential.

Compatible Machines

  • LP 540 Series
  • LP 540 HD Series
  • XM PFP Plural Component Series

Technical Specifications

Part Number 331103
Inner Diameter (ID) .250 in
Outer Diameter (OD) .562 in
Type Flat Round Washer
Function Spacing, load distribution, surface protection

Applications & Use

This washer is used in mechanical fastening points to ensure even pressure distribution and to prevent damage between connected components. It plays a supporting but critical role in maintaining proper alignment and long-term reliability of Graco equipment.

Frequently Asked Questions

It helps distribute load evenly, maintain spacing, and protect mating surfaces inside Graco equipment assemblies.

Reuse is possible if the washer shows no signs of deformation, corrosion, or wear, but replacement is recommended during major servicing.

It may be used in other models that specify the same dimensions and part number in their official parts list.

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