The O-Ring (5/pack), known as packing or a toric joint, is a mechanical gasket consisting of a circular-shaped piece of elastomer material. It is used extensively to mating surfaces between varying components. It forms a seal at the interface and is designed to be seated in a groove and compressed during assembly between two or more parts. It takes up the clearance and prevents any fluid or air from being released as it acts as a sealing device when the ring is squeeze between two surfaces. The O-Ring is use with the stationary part component. Key Features: Made from a rubber material. The product is committed to providing products and offers safety that complies with all applicable laws and regulations. Product replaces: BRP319528, 745419250386, 319528 Specifications: SKU: 319528-PK Brand: BRP UPC: 745419250386 Weight: 0.01 LBS Color: Black Packaging: 5 per pack Assembled Product Dimensions: L 8.00 x W 8.00 x H 17.00 Inches