Precision Associates, Inc.
Precision Associates, Inc.
3800 North Washington Ave.
Minneapolis, MN 55412-2142
Toll Free: 1-800-394-6590
Local: +1 612-333-7464
Sales: +1 612-334-9190
Fax: 612-342-2417
Email: [email protected]
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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

20-248 N/A .50 N/A 6.30 N/A 7.30 N/A Yes N/A N/A
20-305 N/A .50 N/A 7.75 N/A 8.75 N/A Yes N/A N/A
20-311VS N/A .50 N/A 8.0 N/A 9.0 N/A Yes N/A N/A
20-354VS N/A .50 N/A 9.00 N/A 10.0 N/A Yes N/A N/A
20-433VS N/A .50 N/A 11.10 N/A 12.1 N/A Yes N/A N/A
20-515 N/A .50 N/A 13.1 N/A 14.10 N/A Yes N/A N/A
20-583ES N/A .50 N/A 14.90 N/A 15.90 N/A Yes N/A N/A
20-595 N/A .50 N/A 15.10 N/A 16.10 N/A Yes N/A N/A
24-55SS N/A .60 N/A 1.40 N/A 2.6 N/A Yes N/A Yes N/A
24-78SS N/A .60 N/A 2.0 N/A 3.20 N/A Yes N/A N/A
24-169 N/A .60 N/A 4.30 N/A 5.50 N/A Yes N/A N/A
24-205 N/A .60 N/A 5.20 N/A 6.40 N/A Yes N/A N/A
24-472 N/A .60 N/A 12.00 N/A 13.20 N/A Yes N/A N/A
24-945 N/A .60 N/A 24 N/A 25.20 N/A Yes N/A N/A
27-32 N/A .70 N/A .80 N/A 2.20 N/A Yes N/A N/A
27-59VS N/A .70 N/A 1.50 N/A 2.90 N/A Yes N/A N/A
28-94 N/A .70 N/A 2.40 N/A 3.80 N/A Yes N/A N/A
28-110 N/A .70 N/A 2.80 N/A 4.2 N/A Yes N/A N/A
27-143 N/A .70 N/A 3.60 N/A 5.0 N/A Yes N/A N/A
28-201 N/A .70 N/A 5.10 N/A 5.50 N/A Yes N/A N/A
28-210SS N/A .70 N/A 5.40 N/A 6.80 N/A Yes N/A N/A
28-320VS N/A .70 N/A 8.20 N/A 9.60 N/A Yes N/A N/A
28-346VS N/A .70 N/A 8.9 N/A 10.3 N/A Yes N/A N/A
28-347VS N/A .70 N/A 8.9 N/A 10.3 N/A N/A Yes N/A
28-1.181 N/A .70 N/A 30.0 N/A 31.40 N/A Yes N/A N/A
Unit of Measure
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