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. Neoprene is also known as Chloroprene.

Neoprene resists fats, oils and petroleum products. Stands up well in sunlight. Low flammability - burns when exposed to flames, but self-extinguishes when flame is removed. Generally good ozone, aging and chemical resistance. It has good mechanical properties over a wide temperature range.

Unit of Measure

Inside Diamter

N/A 169.30 mm6.665 in

Cross Section Width

N/A 0.224 in5.70 mm


N/A 70

CSW Tolerance

N/A 0.006 in0.15 mm

JIS Number

N/A G-170

ID Tolerance

N/A 0.024 in0.60 mm


N/A JIS Standard O-Ring


N/A Neoprene


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.

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