Nordyne 661020R Natural Gas Main Orifice #20 .020 Inch

The Nordyne 661020R is a precision-engineered natural gas main orifice designed for use in Nordyne residential and commercial heating equipment. This #20 drill size orifice features a .020 inch (0.508mm) bore diameter, specifically calibrated to deliver the correct gas flow rate for optimal burner performance and fuel efficiency.

Key Features:

• Precision .020 inch orifice diameter for accurate gas metering
• #20 drill size designation for easy identification and replacement
• Engineered specifically for natural gas applications
• Direct OEM replacement part for Nordyne furnaces and heating systems
• Brass construction for durability and corrosion resistance
• Ensures proper air-to-fuel ratio for clean, efficient combustion

This main burner orifice is a critical component in the gas valve assembly, controlling the volume of natural gas flowing to the burner. Proper orifice sizing is essential for safe operation, optimal heat output, and preventing issues such as sooting, incomplete combustion, or flame rollout. The Nordyne 661020R is designed as a genuine OEM replacement part to restore your heating system to factory specifications.