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The genuine Goodman 10716005 natural gas orifice (burner spud) is the OEM metering component for the ACVC81005CXBC gas furnace and compatible Goodman/Amana models. The orifice threads into the manifold and precisely controls how much natural gas is injected into each in-shot burner. The drilled diameter sets the BTU input and air-fuel ratio, so using the correct orifice is essential for a clean, efficient, and safe flame.
Orifice sizing is measured in thousandths of an inch, and even a small deviation changes the firing rate and flame quality. OEM Goodman orifices are precision-drilled to the factory drill size for your model and altitude rating. Generic orifices may be mislabeled or imprecisely bored, leading to sooting, overheating, or carbon monoxide. For a gas-metering part, OEM is the right call.
Shut off gas and power. Using the proper wrench, unthread the old orifice from the manifold and install the new one, taking care not to cross-thread or over-tighten the brass. Confirm a clean blue flame and leak-check the manifold connections with soap solution before returning the furnace to service.