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Graco 101580 Lock Nut

Graco 101580 Lock Nut is a durable OEM fastener used in GrindLazer 270, 390, and 480 models to secure key components under heavy vibration.

  • Part Number: 101580
  • Type: Lock Nut
  • Fits: GrindLazer 270 / 390 / 480
  • Function: Prevents loosening and ensures stable assembly

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Overview & Compatibility

Compatible Machines

This Graco 101580 Lock Nut is used in the GrindLazer™ series below.

  • Graco GrindLazer 270 (Model 571002)
  • Graco GrindLazer 390 (Model 571003)
  • Graco GrindLazer 480 (Model 571004)

Key Details

Part Number 101580
Item Name Lock Nut (Graco description: “NUT, lock”)
Equipment Type GrindLazer™ scarifier / surface-preparation equipment
Typical Quantity on Unit Commonly used in multiples on the assemblies for the compatible models

Product Description

The Graco 101580 Lock Nut is a genuine fastener used to securely retain components within the GrindLazer 270/390/480 assemblies. Using the correct OEM lock nut helps maintain vibration resistance and long-term reliability during demanding surface-prep operations.

  • OEM fit for the listed GrindLazer models
  • Designed to resist loosening from vibration
  • Supports factory torque and service procedures

Frequently Asked Questions

No—this lock nut is listed for Graco GrindLazer scarifier equipment, specifically the 270, 390, and 480 models. It isn’t a common part on handheld or cart-mount paint sprayers.

Quantity can vary by assembly. On the GrindLazer 270/390/480 platforms, the parts lists show the lock nut used in multiple positions. Always confirm your exact quantity from your model’s parts diagram before ordering.

Clean the threads, verify the mating fastener size/pitch, and torque to the specification noted in the service manual. Replace any damaged hardware to preserve the vibration-resistant function of the lock nut.

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