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Graco 15A290 G3/8-M22 X 1.5 Sleeve

Ensure proper alignment and reduce wear in your pump with the Graco 15A290 G3/8‑M22 × 1.5 Sleeve. Designed for smooth, reliable fluid-section operation.

  • Precision-fit sleeve for internal alignment
  • Durable construction for high-cycle use
  • Reduces friction and wear on moving parts
  • OEM-quality for Graco diaphragm pumps
  • Supports maintenance and rebuilds

$50.45
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Graco 15A290 G3/8‑M22 × 1.5 Sleeve Overview

The Graco 15A290 Sleeve (G3/8‑M22 × 1.5) is a precision-machined component engineered for fluid‑section assemblies in Graco diaphragm pumps. Its compact design supports secure internal alignment, reduces wear on moving parts, and enhances the overall durability and efficiency of the pump.

Compatible Machines

  • Graco Husky 1590 Diaphragm Pump (1.5″ models) 
  • Other industrial Graco pumps that use a G3/8‑M22 × 1.5 internal sleeve as part of their fluid section

Technical Specifications

Specification Details
Part Number 15A290
Thread / Size G3/8 external / M22 × 1.5 internal
Function Provides a wear-resistant sleeve surface for internal fluid‑section components
Material High-alloy or hardened steel built for long-term durability
Application Used in Graco diaphragm pump fluid sections requiring this specific sleeve geometry
Installation Press or screw-fit into cylinder housing during pump rebuilds or maintenance

Key Features

  • Precision thread design: G3/8 to M22 × 1.5 ensures a tight and accurate fit.
  • Wear resistance: Extends the service life of internal pump components.
  • Corrosion strength: Made from high‑grade material to resist fluid damage.
  • Smooth operation: Reduces friction for moving parts, improving pump efficiency.
  • OEM-grade quality: Ensures compatibility and performance consistency.

Frequently Asked Questions

The sleeve provides a durable, stable internal surface, reducing wear and improving alignment of the fluid section in the pump.

Replace it during fluid‑section rebuilds, especially if wear, scoring, or misalignment is observed.

Yes, it is designed to be fully compatible with Graco fluid‑section assemblies that use the G3/8‑M22 × 1.5 sleeve interface.

By maintaining internal alignment and providing a low-friction surface, the sleeve reduces vibration and wear, resulting in smoother and more reliable pump operation.

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