Please wait while we process your order...

Free Shipping on Qualifying Orders |Fast Shipping — Most Orders Ship Same Business Day|Order by 1 PM CST for fastest dispatch|Call +1 713-931-4102

Graco 556405 Fitting, 1/2 X 1/8 Nptf Hex Red

$15.80
In Stock
Part #: 556405

Hex reducing fitting adapts 3/8-inch and 1/4-inch NPTF threaded connections for dependable fluid or air transfer in compatible Graco equipment.

  • 3/8" x 1/4" NPTF reducing threads
  • Hex body enables quick wrench tightening
  • Provides secure, leak-resistant threaded connections
  • Compatible with Graco systems using matching NPTF ports
Quantity
Buy Now
Genuine OEM Part Fast Shipping (Order by 1 PM CST) Easy Returns

OEM Reducing Fitting for Reliable NPTF Fluid Connections

Compatible Machines

  • Graco automatic lubrication systems requiring a 1/2 in. male NPTF × 1/8 in. female NPTF reducing fitting.
  • Compatible with Graco fluid handling and lubrication equipment that specifies Part No. 556405 in the official parts list.
  • Suitable for Graco and Trabon lubrication assemblies using matching NPTF threaded ports.

Product Overview

The Graco 556405 Fitting, 1/2 X 1/8 NPTF Hex Red is a genuine OEM reducing bushing designed to connect components with different NPTF thread sizes in Graco lubrication and fluid handling systems. It features a 1/2-inch male NPTF thread and a 1/8-inch female NPTF thread, providing a secure transition while maintaining leak-resistant performance.

Manufactured for industrial applications, the fitting incorporates a durable steel body with a hex profile that simplifies installation and removal using standard wrenches. Installing the correct OEM fitting helps maintain system integrity, proper fluid flow, and dependable long-term operation.

Key Features

  • Genuine Graco OEM reducing fitting.
  • 1/2 in. male NPTF × 1/8 in. female NPTF thread configuration.
  • Hex body design for quick installation and secure tightening.
  • Heavy-duty steel construction for industrial environments.
  • Provides dependable, leak-resistant threaded fluid connections.

Typical Applications

The Graco 556405 fitting is commonly used in centralized lubrication systems, grease distribution networks, pneumatic controls, and industrial fluid handling equipment where a reduction from a 1/2-inch threaded port to a 1/8-inch threaded connection is required. As an OEM replacement, it helps preserve proper fit, sealing, and equipment performance. :contentReference[oaicite:0]{index=0}

Frequently Asked Questions

It reduces a 1/2-inch male NPTF threaded connection to a 1/8-inch female NPTF connection while maintaining a secure, leak-resistant seal.

Yes. Part 556405 is an OEM Graco fitting manufactured for compatible Graco lubrication and fluid handling equipment.

It is compatible with Graco lubrication and fluid handling systems that specify Part No. 556405, including various Trabon lubrication assemblies using matching NPTF connections.

Using the correct OEM fitting ensures proper thread engagement, dependable sealing, reliable fluid flow, and long service life while minimizing the risk of leaks.

No reviews yet. Be the first to review this product!

Related Products

Graco 2005276 Fluid Filter Manifold Outlet Packless Plug 3/8 XT −8%
Graco
Graco 2005276 Fluid Filter Manifold Outlet Packless Plug 3/8 XT
Part #: 2005276
$44.81 $48.50 Save $3.69
Buy Now
−5%
Graco
Graco 2005275 Outlet Fluid Filter 1/4 XT Spray System
Part #: 2005275
$36.67 $38.80 Save $2.13
Buy Now
Your Cart
No items in cart.
Add more items
Total 0
Checkout Modify Cart