The forged brass construction effectively eliminates the risk of stress cracking under high-pressure cycles

providing reliable fire damper protection for both vertical and horizontal mounting configurations

the 14004625-004 provides the exact tolerances required for proportional control

or irregular flame patterns often indicate a blockage within the burner orifice that may require cleaning or replacement to restore proper combustion safety

the 5/16" SAE flare size is frequently utilized in R-410A mini-split service ports

York S1-9951-0861 Gas Orifice The forged brass construction effectivelyThe York S1 9951 0861 #44 Gas Orifice is a high precision LP gas conversion component engineered specifically for York heating systems. This OEM replacement orifice features a #44 drill size with a 0. 0860 inch diameter, precisely calibrated to regulate liquid propane flow at 11. 0 inches Water Column (W. C.). Designed for robust performance in multi stage gas furnaces and boilers, this part ensures stoichiometric combustion to prevent soot buildup