A Packing Ring is used to prevent leaks between two surfaces. It is typically made of rubber or silicone and is compressed when it is installed. The function of a packing ring in a cabin roof hatch is to prevent water and dust from entering the cabin. This is important for keeping the cabin dry and comfortable for the operator. Attributes:• Reduces noise and vibration from entering the cabin• Manufactured to precise specifications and is built for durability and reliabilityApplications:A Packing Ring is positioned between the roof hatch cover and the plate to provide a leak-free connection between both.