The thermostat that the knob on your Greystone RV17 oven attaches to is commonly referred to as the oven thermostat, part number seven in the Greystone RV17 manual. Unfortunately, this specific oven thermostat is not currently in stock at Elkhart RV Parts, and they have to source it from other suppliers. To ensure you have the exact part, it is recommended to send a clear photo of your existing thermostat to parts suppliers or RV service centers. Additionally, contacting Greystone directly or visiting local RV service centers may provide replacement options. If you need further assistance or alternative parts for your RV oven, Elkhart RV Parts is available to help.