York S1-9951-1361 Orifice This spring is the standard

This spring is the standard choice for contractors upgrading residential service regulators to higher pressure commercial requirements

This link is specifically rated for the FD-1300 dynamic damper

This part is the bracket only

Common Questions What tube materials can I use with this adapter

098 bore orifice for propane applications

York S1-9951-1361 Orifice This spring is the standardThe York S1 9951 1361 is a precision engineered natural gas orifice designed for specific York furnace burner assemblies. This component features a drill size 29 specification, which translates to a precise . 136 orifice diameter. When diagnosing combustion issues or performing a gas valve manifold service, ensuring the correct flow rate is critical for thermal efficiency and flame stability. This OEM York replacement part provides exact tolerances