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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".
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Unit of Measure
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Item #

C/S Metric (mm)

ID Metric (mm)

OD Metric (mm)

Std Shrink

Special Shrink

Reference Size

71-1.251 N/A 1.80 N/A 31.80 N/A 35.40 N/A Yes N/A N/A
71-1.280VS N/A 1.80 N/A 32.50 N/A 36.10 N/A N/A Yes N/A A0325, JIS B2401 - 32.5 x 1.8
71-1.314 N/A 1.80 N/A 33.40 N/A 37.00 N/A Yes N/A N/A
71-1.387 N/A 1.80 N/A 35.20 N/A 38.80 N/A Yes N/A N/A
70-1.378VS N/A 1.80 N/A 35.50 N/A 39.10 N/A Yes N/A N/A A0355, JIS B2401 - 35.5 x 1.8
70-1.437SS N/A 1.80 N/A 36.90 N/A 40.50 N/A Yes N/A N/A
71-1.629 N/A 1.80 N/A 41.40 N/A 45.00 N/A Yes N/A N/A
70-1.614SS N/A 1.80 N/A 41.50 N/A 45.10 N/A Yes N/A N/A
70-1.738VS N/A 1.80 N/A 44.70 N/A 48.30 N/A Yes N/A N/A
71-1.756 N/A 1.80 N/A 44.80 N/A 48.20 N/A Yes N/A N/A
71-1.882 N/A 1.80 N/A 47.80 N/A 51.40 N/A Yes N/A N/A
70-1.864SS N/A 1.80 N/A 48.25 N/A 51.85 N/A Yes N/A N/A
70-2.071VS N/A 1.80 N/A 53.0 N/A 56.6 N/A Yes N/A N/A
70-2.175VS N/A 1.80 N/A 55.75 N/A 59.35 N/A Yes N/A N/A
70-2.490VS N/A 1.80 N/A 63.70 N/A 67.30 N/A Yes N/A N/A
71-2.638VS N/A 1.80 N/A 67.00 N/A 70.60 N/A N/A Yes N/A A0670
70-2.739SS N/A 1.80 N/A 70.90 N/A 74.50 N/A Yes N/A N/A
70-2.878 N/A 1.80 N/A 73.10 N/A 76.70 N/A Yes N/A N/A
70-3.114VS N/A 1.80 N/A 79.90 N/A 83.50 N/A Yes N/A N/A
71-3.269 N/A 1.80 N/A 83.00 N/A 86.60 N/A Yes N/A N/A
71-3.523 N/A 1.80 N/A 89.5 N/A 93.1 N/A Yes N/A N/A
71-3.776 N/A 1.80 N/A 95.9 N/A 99.5 N/A Yes N/A N/A
70-3.790VS N/A 1.80 N/A 97.00 N/A 100.60 N/A Yes N/A N/A
70-3.840ES N/A 1.80 N/A 97.80 N/A 101.4 N/A Yes N/A N/A
70-3.840VS N/A 1.80 N/A 98.5 N/A 102.1 N/A Yes N/A N/A
Unit of Measure
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