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Graco 118160 External Lock Washer SST

The Graco 118160 Washer Lock External SST provides secure, reliable connections in high-pressure fluid systems. Key benefits include:

  • Compatible with Graco ProXcite, HydraMax, EnduraFlow pumps, and high-pressure filtration units
  • 316 stainless steel construction for corrosion resistance
  • Maintains consistent preload under vibration
  • Supports pressures up to 3,000 psi
  • Low-profile design for easy integration

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High-Performance External Lock Washer for Industrial Pumps

The Graco 118160 Washer Lock External SST ensures secure connections and consistent seal integrity in high-pressure fluid applications. Crafted from premium 316 stainless steel, it delivers corrosion resistance and reliable performance under demanding conditions.

Compatible Machines

  • Graco ProXcite series pumps
  • Graco HydraMax series pumps
  • Graco EnduraFlow series pumps
  • High-pressure filtration units
  • Automated coating and chemical metering systems

Key Features

  • 316 SST construction for superior corrosion and chemical resistance
  • Precision CNC machining for tight tolerances and consistent preload
  • Locking geometry prevents axial separation under vibration
  • Compact, low-profile design for easy integration
  • Supports high-pressure operations up to 3,000 psi
  • Reduces seal wear and improves pump efficiency

Specifications

Material 316 Stainless Steel (ASTM A276)
Max Pressure 3,000 psi
Axial Retention Force >1,200 N at 15 Nm torque
Axial Play <0.02 mm after 500,000 vibration cycles
Surface Finish Ra <0.8 µm, electropolished
Applications Airless sprayers, high-pressure filtration, coating lines, chemical pumps

Maintenance & Usage

  • Inspect washer faces for flatness and burrs before assembly
  • Lubricate with anti-seize compounds during installation
  • Regularly check torque to maintain optimal preload
  • Compatible with high-viscosity fluids and abrasive additives

Frequently Asked Questions

Compatible with Graco ProXcite, HydraMax, EnduraFlow series pumps, high-pressure filtration units, and automated coating/chemical metering systems.

The 118160 washer lock is rated for high-pressure applications up to 3,000 psi.

Clean surfaces, use anti-seize lubrication during assembly, inspect for wear or burrs, and maintain torque to ensure consistent preload and seal longevity.

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