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Graco 150513 Hexagonal Jam Nut

The Graco 150513 Hexagonal Jam Nut secures high-pressure fluid connections for reliable, leak-free performance in compatible Graco sprayers.

  • Exact OEM fit for Graco regulators and pumps
  • Durable steel construction for long-lasting use
  • Hexagonal design allows easy installation
  • Thread size: 7/16"-20

$15.61
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Graco 150513 Hexagonal Jam Nut Overview

The Graco 150513 Hexagonal Jam Nut is an OEM replacement part designed for secure and reliable fluid connections in high-pressure airless sprayers. Its hexagonal shape allows easy installation, and durable steel construction ensures resistance to corrosion and wear.

Key Features

  • Exact OEM fit for Graco high-pressure systems
  • Durable steel construction for long-lasting performance
  • Hexagonal design allows easy wrench installation
  • Precise 7/16"-20 threads for secure connections

Compatible Machines

The 150513 Hexagonal Jam Nut fits the following Graco machines:

Machine Model
Graco 206661 Series G Fluid Regulator
Graco Mark V Pumps
Graco Contractor Pro Series
Other industry-standard high-pressure sprayers

Technical Specifications

  • Material: Steel or corrosion-resistant alloy
  • Thread Size: 7/16"-20
  • Surface Treatment: Phosphate conversion coating and passivation
  • Torque Specification: 20–25 N·m for proper installation

Frequently Asked Questions

It is used to secure fluid end components in high-pressure airless sprayers, ensuring leak-free and consistent fluid flow.

It fits Graco 206661 Series G Fluid Regulators, Mark V Pumps, Contractor Pro series, and other industry-standard high-pressure sprayers.

The recommended torque is 20–25 N·m to ensure proper preload without risking damage.

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