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Graco 123974 Key Square 1/8 x 3/4

Essential key for secure and precise pump operation, ensuring durability and exact fit in Graco sprayers.

  • Fits Graco 24:1 and 30:1 ratio pumps
  • Compatible with Model 390, Magnum X5, X7, and ProShot series
  • Hardened stainless steel for wear resistance
  • Precision-ground for exact engagement

$7.25
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High-Precision Graco Key Square for Industrial Pumps

Compatible Machines

  • Graco 24:1 Ratio Pump Modules
  • Graco 30:1 Ratio Pump Modules
  • Graco Model 390
  • Magnum X5 Series
  • Magnum X7 Series
  • Graco ProShot Series

Product Overview

The Graco 123974 Key Square 1/8 x 3/4 ensures precise torque transfer and secure engagement in demanding airless sprayer systems. Designed for high-pressure pump modules, this hardened stainless steel key provides durability, alignment, and optimal pump efficiency.

  • Precision-ground square key to ±0.002 inch tolerance for exact fit
  • Electro-polished stainless steel for wear resistance and chemical stability
  • Heat-treated to 45–50 HRC to resist shear and torsion
  • Tool-free installation for fast maintenance and assembly

Frequently Asked Questions

The key is made from hardened, corrosion-resistant stainless steel with a heat-treated surface for durability and wear resistance.

Compatible with Graco 24:1 and 30:1 ratio pumps, including Model 390, Magnum X5, X7, and ProShot series.

The square key is precision-ground to ±0.002 inch tolerance, ensuring exact engagement with keyed bores and shafts.

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