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Maryland Metrics: Technical Data Chart
   
JIS SO standard o-ring size listing
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When inquiring for a quotation; include the standard number.

Other sizes are also available but are not included in this listing. Please inquire.
SO standard number Inner diameter Cord diameter (thickness) Outer diameter
SO3 2.5 1.5 5.5
SO4 3.5 1.5 6.5
SO5 4.5 1.5 7.5
SO6 5.5 1.5 8.5
SO7 6.5 1.5 9.5
SO8 7.5 1.5 10.5
SO9 8.5 1.5 11.5
SO10 9.5 1.5 12.5
SO11.2 10.7 1.5 13.7
SO12 11.5 1.5 14.5
SO12.5 12 1.5 15
SO13 12.5 1.5 15.5
SO14 13.5 1.5 16.5
SO15 14.5 1.5 17.5
SO16 15.5 1.5 18.5
SO18 17.5 1.5 20.5
SO20 19.5 1.5 22.5
SO21 20.5 1.5 23.5
SO22 21.5 1.5 24.5
SO22.4 21.9 2 25.9
SO23 22.5 2 26.5
SO24 23.5 2 27.5
SO25 24.5 2 28.5
SO26 25.5 2 29.5
SO28 27.5 2 31.5
SO29 28.5 2 32.5
SO30 29.5 2 33.5
SO31.5 31 2 35
SO32 31.5 2 35.5
SO34 33.5 2 37.5
SO35 34.5 2 38.5
SO35.5 35 2 39
SO36 35.5 2 39.5
SO38 37.5 2 41.5
SO39 38.5 2 42.5
SO40 39.5 2 43.5
SO42 41.5 2 45.5
SO44 43.5 2 47.5
SO45 44.5 2 48.5
SO46 45.5 2 49.5
SO48 47.5 2 51.5
SO50 49.5 2 53.5
SO51 50.5 2 54.5
SO52 51.5 2 55.5
SO53 52.5 2 56.5
SO55 54.5 2 58.5
SO56 55.5 2 59.5
SO60 59.5 2 63.5
SO63 62.5 2 66.5
SO65 64.5 2 68.5
SO67 66.5 2 70.5
SO70 69.5 2 73.5
SO71 70.5 2 74.5
SO75 74.5 2 78.5
SO80 79.5 2 83.5
SO85 84.5 2 88.5
SO90 89.5 2 93.5
SO95 94.5 2 98.5
SO100 99.5 2 103.5
SO105 104.5 2 108.5
SO110 109.5 2 113.5
SO112 111.5 2 115.5
SO115 114.5 2 118.5
SO120 119.5 2 123.5
SO125 124.5 2 128.5
SO130 129.5 2 133.5
SO132 131.5 2 135.5
SO135 134.5 2 138.5
SO140 139.5 2 143.5
SO145 144.5 2 148.5
SO150 149.5 2 153.5
SO155 154.5 2 158.5
SO160 159.5 2 163.5
SO170 169.5 2 173.5
SO175 174.5 2 178.5
SO180 179.5 2 183.5
SO185 184.5 2 188.5
SO190 189.5 2 193.5
SO195 194.5 2 198.5
SO200 199.5 2 203.5

(Unit: mm)

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