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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 is a copolymer of Tetrafluoroethylene (TFE) and propylene. Its chemical resistance is excellent across a wide range of aggressive media. 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
P250 AFLAS-75 N/A
180721
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 249.5 mm9.823 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-250 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P250 AFLAS-83 N/A
180722
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 249.5 mm9.823 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-250 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P255 AFLAS-75 N/A
180723
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 254.5 mm10.020 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-255 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P255 AFLAS-83 N/A
180724
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 254.5 mm10.020 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-255 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P26 AFLAS-75 N/A
180725
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 75 N/A 25.70 mm1.012 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-26 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P26 AFLAS-83 N/A
180726
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 83 N/A 25.70 mm1.012 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-26 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P260 AFLAS-75 N/A
180727
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 259.5 mm10.217 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-260 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P260 AFLAS-83 N/A
180728
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 259.5 mm10.217 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-260 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P265 AFLAS-75 N/A
180729
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 264.5 mm10.413 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-265 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P265 AFLAS-83 N/A
180730
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 264.5 mm10.413 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-265 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P270 AFLAS-75 N/A
180731
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 269.5 mm10.610 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-270 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P270 AFLAS-83 N/A
180732
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 269.5 mm10.610 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-270 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P275 AFLAS-75 N/A
180733
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 274.50 mm10.807 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-275 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P275 AFLAS-83 N/A
180734
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 274.50 mm10.807 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-275 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P28 AFLAS-75 N/A
180735
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 75 N/A 27.70 mm1.091 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-28 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P28 AFLAS-83 N/A
180736
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 83 N/A 27.70 mm1.091 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-28 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P280 AFLAS-75 N/A
180737
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 279.50 mm11.004 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-280 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P280 AFLAS-83 N/A
180738
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 279.50 mm11.004 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-280 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P285 AFLAS-75 N/A
180739
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 284.50 mm11.201 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-285 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P285 AFLAS-83 N/A
180740
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 83 N/A 284.50 mm11.201 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-285 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P29 AFLAS-75 N/A
180741
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 75 N/A 28.70 mm1.130 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P29 AFLAS-83 N/A
180742
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 83 N/A 28.70 mm1.130 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P29.5 AFLAS-75 N/A
180743
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 75 N/A 29.20 mm1.150 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29.5 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P29.5 AFLAS-83 N/A
180744
N/A JIS Standard O-Ring N/A Aflas N/A 0.138 in3.50 mm N/A 83 N/A 29.20 mm1.150 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29.5 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
P290 AFLAS-75 N/A
180745
N/A JIS Standard O-Ring N/A Aflas N/A 0.331 in8.40 mm N/A 75 N/A 289.50 mm11.398 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-290 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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