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Graco 166863 Reducing Nipple Fitting

The Graco 166863 Reducing Nipple Fitting connects 3/8" NPTM to 1/4" NPTM ports, making it ideal for fluid line adjustments and system repairs.

  • Durable stainless-steel construction
  • Reliable NPT thread connection
  • Suitable for industrial coating setups

Retail Price: $74.25
You save: $1.3 (1.75%)
Our Price: $72.95
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Graco 166863 Reducing Nipple Fitting – Detailed Specifications & Compatibility

The Graco 166863 Reducing Nipple Fitting is a high-quality threaded connector used to adapt between different NPT sizes in Graco fluid systems. It is commonly used in industrial coating, paint sprayer, and finishing equipment that require a transition from 3/8" NPTM to 1/4" NPTM.

Compatible Machines

This fitting is generally compatible with Graco machines that use a 3/8" NPT male port and require a 1/4" NPT male reduction. Please verify thread size before ordering.

  • Graco sprayers & fluid systems requiring 3/8" NPTM to 1/4" NPTM reduction
  • Industrial coating systems with NPT thread connections
  • General Graco finishing equipment using NPT threaded adapters

Product Details

Part Number 166863
Type Reducing Nipple Fitting
Thread Size 3/8" NPTM → 1/4" NPTM
Material Stainless steel (based on available listings)
Application Fluid line and hose connection reduction

Why Choose This Fitting?

  • Durable stainless-steel construction suitable for coating materials
  • Ensures a secure NPT thread connection
  • Ideal for custom hose setups and system repairs

Frequently Asked Questions

It is used to reduce fluid line connections from 3/8" NPT male to 1/4" NPT male, commonly found in paint sprayer and industrial coating systems.

It works with Graco units that require this specific NPT thread reduction. Always check the machine’s thread specifications before installation.

Yes, stainless-steel adapters like this are commonly rated for airless sprayer pressures. However, confirm your sprayer’s pressure rating to ensure compatibility.

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