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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. 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. 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 Neoprene

Cross Section Width

 N/A 0.079 in2.00 mm

Durometer

 N/A 70

Inside Diameter

 N/A 43.50 mm1.713 in

CSW Tolerance

 N/A 0.004 in0.09 mm

ID Tolerance

 N/A 0.01 in0.25 mm

JIS Number

 N/A S-44

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.