Japanese Industrial Standard O-Rings are another popular classification system used around the globe. Published by the Japanese Standard Association, these o-rings are also categorized using the metric system. JIS O-Rings are used in many different fields, but typically are implemented in Japan's semiconductor, automotive and machine tool industries.
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
                    Unit of Measure
                    
               
        
            
                                                                                Type | 
                                                                        N/A JIS Standard O-Ring | 
                                                                                Material | 
                                                                        N/A Silicone | 
                                                                                Cross Section Width | 
                                                                        N/A 0.122 in3.10 mm | 
                                                                                Durometer | 
                                                                        N/A 70 | 
                                                                                Inside Diameter | 
                                                                        N/A 134.40 mm5.291 in | 
                                                                                CSW Tolerance | 
                                                                        N/A 0.004 in0.10 mm | 
                                                                                ID Tolerance | 
                                                                        N/A 0.024 in0.60 mm | 
                                                                                JIS Number | 
                                                                        N/A G-135 | 
                                                                                Warning | 
                                                                        N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. | 
                                                                                O-Ring Industries | 
                                                                        N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |