The Vulcan Hart 00-418051-00053 Hood Orifice is a gas metering component used within compatible commercial cooking equipment burner assemblies. Its #53 opening provides a calibrated passage for controlling fuel flow toward the burner, while the 3/8"-27 threaded connection matches the specified gas fitting. The 1/2" height corresponds to the listed component dimensions. Installed withi... https://partsfe.com/orifice-53-for-vulcan-part-00-418051-00053