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Graco 166846 Fitting Adapter

$123.50
Available to Order
Part #: 166846

The Graco 166846 Fitting Adapter is a stainless-steel connector designed for high-pressure spray systems requiring a 1/4" NPT to 1/4" NPSM transition. Ideal for whip-hose and fluid line connections.

  • 1/4" NPT × 1/4" NPSM
  • Stainless Steel (304 SST)
  • Rated up to 7,250 PSI
  • Used in Merkur & finishing systems
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Graco 166846 Fitting Adapter

Graco 166846 Fitting Adapter is a high-pressure stainless-steel connector designed for spray systems that require a **1/4" NPT to 1/4" NPSM** transition. Commonly used in fluid lines and whip-hose connections, it ensures a secure and leak-free fit in Graco finishing and airless systems.

Compatible Machines

  • Graco Merkur Series (including Merkur 23:1)
  • Graco Finishing Systems using 1/4" NPT × 1/4" NPSM adapter points
  • Spray systems requiring whip-hose adapter connection

Product Details

Part Number 166846
Type Fitting Adapter
Thread Size 1/4" NPT × 1/4" NPSM
Material Stainless Steel (304 SST)
Pressure Rating Up to 7,250 PSI
Typical Use Whip hose connection / fluid outlet fittings

Description

The Graco 166846 Fitting Adapter provides a secure threaded transition between high-pressure spray lines. Built from corrosion-resistant stainless steel and engineered for demanding painting and finishing tasks, it maintains performance under extreme pressure. Ideal for technicians and contractors upgrading or replacing fittings in Graco finishing and Merkur pump systems.

Frequently Asked Questions

It supports **1/4" NPT** on one side and **1/4" NPSM** on the other, allowing connection between two different thread types used in spray systems.

It is typically used for whip-hose connections and fluid outlet transitions on Graco finishing and Merkur pumps.

Yes, it is rated up to 7,250 PSI, making it appropriate for demanding finishing and airless spray systems.

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