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Search our list of Metric O-Rings. O-Rings included on this list are either included in an International Standard, or measure in even mm increments. If you can't find your O-Ring seal in this group, be sure to check out "All O-Rings".
O-Ring Picture
Unit of Measure
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Item #

C/S Metric (mm)

ID Metric (mm)

OD Metric (mm)

Std Shrink

Special Shrink

Reference Size

118-3.819 N/A 3.00 N/A 97.00 N/A 103.00 N/A Yes N/A N/A
118-4.134 N/A 3.00 N/A 105.00 N/A 111.00 N/A Yes N/A N/A
118-5.315 N/A 3.00 N/A 135.00 N/A 141.00 N/A Yes N/A N/A
118-5.492 N/A 3.00 N/A 139.50 N/A 145.50 N/A Yes N/A N/A BS 4518 1395-30
118-5.689 N/A 3.00 N/A 144.50 N/A 150.50 N/A Yes N/A N/A BS 4518 1445-30
118-5.905 N/A 3.00 N/A 150.00 N/A 156.00 N/A Yes N/A N/A
118-6.378VS N/A 3.00 N/A 162.00 N/A 168.00 N/A N/A Yes N/A
118-7.784NS N/A 3.00 N/A 200.00 N/A 206.00 N/A N/A Yes N/A
118-8.504VS N/A 3.00 N/A 216.00 N/A 222.00 N/A N/A Yes N/A
118-8.504VS N/A 3.00 N/A 218.00 N/A 224.00 N/A Yes N/A N/A
122-200 N/A 3.10 N/A 5.10 N/A 11.3 N/A Yes N/A N/A
120-636SS N/A 3.10 N/A 16.40 N/A 22.60 N/A Yes N/A N/A
123-924 N/A 3.10 N/A 23.50 N/A 29.70 N/A Yes N/A N/A
122-3.520 N/A 3.10 N/A 89.40 N/A 95.60 N/A Yes N/A N/A JIS B2401 G90
125-950SS N/A 3.20 N/A 24.38 N/A 30.78 N/A Yes N/A N/A
125-2.750SS N/A 3.20 N/A 70.50 N/A 76.90 N/A Yes N/A N/A
130-425 N/A 3.30 N/A 10.80 N/A 17.40 N/A Yes N/A N/A
130-3.062 N/A 3.30 N/A 77.80 N/A 84.40 N/A Yes N/A N/A
138-523 N/A 3.5 N/A 13.30 N/A 20.30 N/A Yes N/A N/A
138-708 N/A 3.5 N/A 18.00 N/A 25.00 N/A Yes N/A N/A
31-472VS N/A 3.5 N/A 19.0 N/A 26.0 N/A N/A Yes N/A
138-1.491ES N/A 3.5 N/A 37.90 N/A 44.90 N/A Yes N/A N/A
140-675 N/A 3.55 N/A 17.15 N/A 24.25 N/A Yes N/A N/A
140-800 N/A 3.55 N/A 20.30 N/A 27.40 N/A Yes N/A N/A
140-1.491 N/A 3.55 N/A 37.90 N/A 45.00 N/A Yes N/A N/A
Unit of Measure
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