Reznor 196840 Brass Orifice Size 4

Product Description

The REZNOR 196840 is a size 4 brass orifice designed for use in Reznor heating equipment. The orifice meters gas flow into the burner assembly, controlling combustion air-fuel mixture at the point of ignition. Brass construction provides corrosion resistance and dimensional stability under repeated thermal cycling. This component is a direct OEM-style replacement part, typically installed by licensed HVAC technicians or gas appliance service professionals during burner maintenance, gas conversion, or combustion performance restoration.

The 196840 orifice is suited for Reznor unit heaters and related heating equipment that require a size 4 orifice in the burner or manifold assembly. It is commonly replaced during gas type conversions, orifice cleaning failures, or as part of a scheduled burner service. The brass material is compatible with natural gas and propane applications where the corresponding orifice sizing is specified by the equipment manufacturer.

Key Features

• Brass construction for corrosion resistance and thermal durability
• Size 4 orifice for precise gas flow metering
• OEM Reznor replacement part for accurate fitment
• Suitable for burner assembly service and gas conversion work

Compatibility

Designed as an OEM-style replacement orifice for Reznor heating equipment requiring a size 4 brass orifice in the burner or manifold assembly.

Installation Notes

Installation should be performed by a licensed HVAC or gas service technician in accordance with applicable local codes and IFGC requirements. Shut off the gas supply and allow the unit to cool completely before removing or replacing any orifice. Use the correct orifice wrench or fitting tool to avoid damaging the brass threads or orifice bore. Verify the replacement orifice size matches the equipment manufacturer specifications for the fuel type in use before returning the unit to service.

Technical Specifications

• Material: Brass
• Orifice Size: 4

Standard Information

• Brand: REZNOR
• Manufacturer Part Number: 196840