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Resideo 390427A Reducer Bushing 3/4"-1/2"

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Special Price $16.16 Regular Price $21.01
In stock
SKU
390427A
The Resideo 390427A Reducer Bushing is a plumbing connection fitting component used to join pipes with different connection sizes. It is placed in a 3/4-inch to 1/2-inch, it provides a transition point that allows proper fitting between larger and smaller threaded sections in HVAC systems. Installed within piping assemblies, this bushing maintains secure connections while supporting correct flow through the system. It operations as part of the installation equipment allowing compatible components to be integrated where size adjustment is required.
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HVAC Accessories, Bushings & Spacers
Manufacturer:
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Specifications

  • Type: Reducer Bushing
  • Connection Size: 3/4" × 1/2"
  • Application: Combination Gas Controls

Product Overview:
Connection-size differences between components are resolved with fittings that adapt one size to another. The Resideo 390427A Reducer Bushing 3/4"-1/2" is an OEM reducer bushing for transitioning between 3/4 inch and 1/2 inch connections.

Connection Size Transition:
A reducer bushing reduces a larger connection to a smaller one, allowing components with different connection sizes to be joined within the same assembly.

Replacement Guidelines:
Replace the 390427A Reducer Bushing 3/4"-1/2" when it can no longer maintain the connection-size transition in the assembly. A functional replacement restores a secure transition between the two connection sizes.

Common Failure Symptoms:

  • Visible physical damage or wear on the bushing, including the connection surfaces.
  • Loose or unsecured connection within the assembly.
  • Leakage at the connection where the bushing is installed.
  • Cracking or deformation of the bushing body.
  • Corrosion or surface degradation on the bushing.
  • Damaged or stripped connection surfaces that prevent a proper fit.
  • Deterioration that affects connection engagement

Equipment Compatibility:
The OEM Resideo 390427A is applicable to select equipment requiring a connection-size transition. Verify the brand, part number, and connection size against original equipment documentation prior to purchase.

Technical Specifications:
Brand: Resideo
Part Number: 390427A
Product Name: Reducer Bushing 3/4"-1/2"
Connection Size: 3/4"-1/2"

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Product Questions (5)
Customer Questions
What is the main function of the 390427A reducer bushing?

It steps down a 3/4-inch female NPT gas valve inlet or pipe opening to accept a 1/2-inch male NPT gas supply line, enabling secure, leak-free connection between mismatched pipe sizes.

What thread connection gender and style does this bushing feature?

The bushing features external 3/4-inch male NPT threads on the outside and internal 1/2-inch female NPT threads on the inside.

Is thread sealant required when installing this gas pipe reducer bushing?

Yes. Always apply a gas-rated pipe thread sealant (pipe dope) or yellow PTFE tape to the male NPT threads during installation to ensure a gas-tight seal and prevent fuel leaks.

Can this reducer bushing be used on both LP (Propane) and Natural Gas lines?

Yes. As a mechanical iron/steel threaded pipe fitting, it is compatible with both Natural Gas and Liquid Propane (LP) piping networks, provided line pressure remains within standard gas control valve limits.

What are common signs that a reducer bushing may need inspection?

Visible damage, deformation, deterioration, or an improper connection fit can indicate that the reducer bushing and its associated connection should be inspected.