York S1-9951-0931 Orifice Precision Machined SAE Threads: 5/16

Precision Machined SAE Threads: 5/16 male flare and 1/4 MPT connections specifically sized for compatibility with modern mini-split and refrigeration systems

ensuring smooth door actuation without over-stressing the motor

The link is physically marked and rated for 165°F

including many TCX and residential split systems

and plastic tubing when paired with a standard 45-degree flare

York S1-9951-0931 Orifice Precision Machined SAE Threads: 5/16The York S1 9951 0931 is a precision engineered LP Gas Orifice designed for specific burner manifold applications in York, Luxaire, and Coleman furnace systems. This component features a #42 drill size with a verified . 0935 internal diameter, ensuring exact volumetric control of liquid propane flow to the burner assembly. As an OEM replacement part from Johnson Controls, it is manufactured from high grade brass to maintain dimensional stability and