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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. Polyurethane is also known as urethane, cast urethan and millable urethane.

Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards. 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
G25 U-70 N/A
179791 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 24.40 mm0.961 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-25 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G25 U-90 N/A
179792 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 90 N/A 24.40 mm0.961 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-25 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G250 U-70 N/A
179793 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 249.3 mm9.815 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-250 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G250 U-90 N/A
179794 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 249.3 mm9.815 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-250 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G255 U-70 N/A
179795 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 254.3 mm10.012 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-255 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G255 U-90 N/A
179796 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 254.3 mm10.012 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-255 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G260 U-70 N/A
179797 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 259.3 mm10.209 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-260 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G260 U-90 N/A
179798 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 259.3 mm10.209 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-260 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G270 U-70 N/A
179799 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 269.3 mm10.602 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-270 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G270 U-90 N/A
179800 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 269.3 mm10.602 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-270 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G280 U-70 N/A
179801 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 279.30 mm10.996 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-280 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G280 U-90 N/A
179802 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 279.30 mm10.996 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-280 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G290 U-70 N/A
179803 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 289.30 mm11.390 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-290 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G290 U-90 N/A
179804 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 289.30 mm11.390 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-290 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G30 U-70 N/A
179805 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 29.40 mm1.157 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-30 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G30 U-90 N/A
179806 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 90 N/A 29.40 mm1.157 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-30 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G300 U-70 N/A
179807 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 299.30 mm11.783 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-300 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G300 U-90 N/A
179808 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 299.30 mm11.783 in N/A 0.006 in0.15 mm N/A 0.031 in0.80 mm N/A G-300 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G35 U-70 N/A
179809 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 34.40 mm1.354 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-35 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G35 U-90 N/A
179810 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 90 N/A 34.40 mm1.354 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-35 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G40 U-70 N/A
179811 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 39.40 mm1.551 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-40 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G40 U-90 N/A
179812 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 90 N/A 39.40 mm1.551 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A G-40 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G45 U-70 N/A
179813 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 44.40 mm1.748 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A G-45 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G45 U-90 N/A
179814 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 90 N/A 44.40 mm1.748 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A G-45 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
G50 U-70 N/A
179815 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.122 in3.10 mm N/A 70 N/A 49.40 mm1.945 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A G-50 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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