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Graco 556646 Fitting, Adapter, 5/16 T X 1/4 Npt

$5.25
In Stock
Part #: 556646

Brass male connector that adapts a 5/16 in. tube to a 1/4 in. NPTF threaded connection for secure fluid transfer in lubrication systems.

  • Connection: 5/16 in. tube × 1/4 in. NPTF
  • Brass construction for durability and corrosion resistance
  • Tube-end to threaded male connector design
  • Compatible with Graco Pneumatic Grease Jockey systems
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Genuine OEM Part Fast Shipping (Order by 1 PM CST) Easy Returns

Durable Tube-to-Thread Connection for Graco Lubrication Equipment

Compatible Machines

Compatible Machine Compatibility
Graco Grease Jockey Automatic Lubrication Systems Compatible
Graco Pneumatic Grease Jockey Lubrication Systems Compatible
Graco Automatic Oil & Grease Lubrication Equipment using 5/16 in. tubing and 1/4 in. NPT ports Compatible

The Graco 556646 Fitting, Adapter, 5/16 T X 1/4 NPT is a genuine OEM adapter designed to connect 5/16-inch tubing to a 1/4-inch NPT threaded port in Graco automatic lubrication systems. It provides a secure, leak-resistant connection that supports reliable lubricant flow in demanding industrial applications.

Engineered to Graco's original specifications, this adapter ensures proper fit and dependable sealing during installation and maintenance. Using an authentic replacement fitting helps maintain system efficiency, reduces the risk of leaks, and extends the service life of connected lubrication components.

Key Features

  • Genuine Graco OEM adapter fitting.
  • Connects 5/16-inch tubing to a 1/4-inch NPT threaded port.
  • Provides a secure, leak-resistant fluid connection.
  • Designed for automatic oil and grease lubrication systems.
  • Precision-manufactured for reliable long-term performance.

Benefits of Using the Genuine Graco Adapter

Connection fittings are essential for maintaining consistent lubricant delivery throughout an automatic lubrication system. The genuine Graco 556646 adapter is manufactured for precise fit and dependable sealing, helping minimize downtime, prevent fluid leakage, and maintain the performance and reliability of your Graco lubrication equipment.

Frequently Asked Questions

It connects 5/16-inch tubing to a 1/4-inch NPT threaded port, creating a secure fluid connection within Graco automatic lubrication systems.

It is compatible with Graco Grease Jockey and other Graco automatic oil and grease lubrication systems that require a 5/16-inch tube to 1/4-inch NPT connection.

Genuine Graco fittings are manufactured to OEM specifications, ensuring proper fit, dependable sealing, and reliable lubrication system performance.

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