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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.

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.
JIS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

ID Tolerance

JIS Number

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O-Ring Industries

Quantity
S32 S-70 N/A
180461 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 31.50 mm1.240 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-32 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S34 S-70 N/A
180462 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 33.50 mm1.319 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-34 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S35 S-70 N/A
180463 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 34.50 mm1.358 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-35 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S35.5 S-70 N/A
180464 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 35.00 mm1.378 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-35.5 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S36 S-70 N/A
180465 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 35.50 mm1.398 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-36 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S38 S-70 N/A
180466 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 37.50 mm1.476 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-38 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S39 S-70 N/A
180467 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 38.50 mm1.516 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-39 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S4 S-70 N/A
180468 		N/A JIS Standard O-Ring N/A Silicone N/A 0.059 in1.50 mm N/A 70 N/A 3.50 mm0.138 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-4 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S40 S-70 N/A
180469 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 39.50 mm1.555 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-40 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S42 S-70 N/A
180470 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 41.50 mm1.634 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-42 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S44 S-70 N/A
180471 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 43.50 mm1.713 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-44 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S45 S-70 N/A
180472 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 44.50 mm1.752 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-45 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S46 S-70 N/A
180473 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 45.5 mm1.791 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-46 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S48 S-70 N/A
180474 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 47.50 mm1.870 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-48 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S5 S-70 N/A
180475 		N/A JIS Standard O-Ring N/A Silicone N/A 0.059 in1.50 mm N/A 70 N/A 4.50 mm0.177 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-5 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S50 S-70 N/A
180476 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 49.50 mm1.949 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-50 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S53 S-70 N/A
180477 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 52.50 mm2.067 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-53 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S55 S-70 N/A
180478 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 54.50 mm2.146 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-55 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S56 S-70 N/A
180479 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 55.50 mm2.185 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-56 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S6 S-70 N/A
180480 		N/A JIS Standard O-Ring N/A Silicone N/A 0.059 in1.50 mm N/A 70 N/A 5.50 mm0.217 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-6 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S60 S-70 N/A
180481 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 59.50 mm2.343 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-60 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S63 S-70 N/A
180482 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 62.50 mm2.461 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-63 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S65 S-70 N/A
180483 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 64.5 mm2.539 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-65 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S67 S-70 N/A
180484 		N/A JIS Standard O-Ring N/A Silicone N/A 0.079 in2.00 mm N/A 70 N/A 66.50 mm2.618 in N/A 0.004 in0.09 mm N/A 0.01 in0.25 mm N/A S-67 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
S7 S-70 N/A
180485 		N/A JIS Standard O-Ring N/A Silicone N/A 0.059 in1.50 mm N/A 70 N/A 6.50 mm0.256 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-7 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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