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Graco 556660 Sleeve Nut for 3/16 Tube

GRACO 556660 Sleeve Nut is a genuine OEM threaded connecting component used to secure fluid lines and fittings in compatible Graco airless sprayer systems.

  • Brand: Graco OEM sleeve nut
  • Type: Threaded attachment nut
  • Application: Secures hose or fitting connections
  • Fit: Designed for compatible Graco fluid line assemblies
  • Material: Durable metal construction

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Compatible Machines / Systems

  • Graco Ultra XT electrical airless sprayers
  • Professional coating and paint spraying systems
  • Contractor‑grade sprayers requiring threaded connections
  • Any sprayer using compatible Graco fluid line fittings

GRACO 556660 Sleeve Nut is an OEM‑engineered threaded nut that secures fluid lines and accessories in high‑pressure spray systems. Proper sleeve nuts help ensure safe, leak‑free connections between hoses, adapters, and fittings.

  • Precision‑machined threads for secure fit
  • OEM part ensures compatibility
  • Metal construction for durability
  • Critical for maintaining reliable fluid line connections

Product Overview

ManufacturerGraco
Model Number556660
TypeSleeve Nut
Center Section MaterialMetal Alloy
Port SizeStandard fluid line thread
Air InletNot Applicable
Wetted MaterialMetal Alloy
Compatible MediaPaints, coatings, primers

Frequently Asked Questions

It secures hose connections and fittings to maintain high‑pressure fluid line integrity.

It fits lines with compatible Graco thread sizes, but check your model’s thread specifications before installation.

Yes. As long as threads are not damaged, they can typically be reused.

Thread the nut onto the fitting securely and hand‑tighten, then use proper tools if required by your sprayer manual.

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