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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. PTFE is also known as TFE and Polytetrafluoroethylene. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Unit of Measure

Specifications

Type

 N/A JIS Standard O-Ring

Material

 N/A PTFE

Cross Section Width

 N/A 0.224 in5.70 mm

Inside Diameter

 N/A 239.3 mm9.421 in

CSW Tolerance

 N/A 0.006 in0.15 mm

ID Tolerance

 N/A 0.031 in0.80 mm

JIS Number

 N/A G-240

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.