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 2,700+ Standard & Special Size O-Ring Tooling List. O-Rings are available with inside diameters (ID) as small as .004" and as large as 34". If you can't find your O-Ring size, please call - new O ring sizes are added regularly. If we are not tooled for your non-standard O-Ring, we can make a special tool in our On-Site mold shop.

Click here to view our O-Ring Brochure.
O-Ring Picture
Unit of Measure
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Item #

C/S (inches)

C/S Tolerance (±)

I.D. (inches)

I.D. Tolerance (±)

O.D. (REF) (inches)

Metric C/S (mm)

Metric I.D. (mm)

Metric O.D. (mm)

104-681 N/A 0.104 N/A 0.003 N/A 0.681 N/A 0.009 N/A 0.889 N/A 2.6 N/A 17.3 N/A 22.6
104-1.222 N/A 0.104 N/A 0.003 N/A 1.222 N/A 0.012 N/A 1.430 N/A 2.6 N/A 31 N/A 36.3
104-1.628 N/A 0.104 N/A 0.003 N/A 1.628 N/A 0.015 N/A 1.836 N/A 2.6 N/A 41.4 N/A 46.6
103-1.889SS N/A 0.104 N/A 0.003 N/A 1.909 N/A 0.015 N/A 2.117 N/A 2.6 N/A 48.5 N/A 53.8
103-3.185SS N/A 0.104 N/A 0.003 N/A 3.222 N/A 0.024 N/A 3.430 N/A 2.6 N/A 81.8 N/A 87.1
103-4.609SS N/A 0.104 N/A 0.003 N/A 4.654 N/A 0.030 N/A 4.862 N/A 2.6 N/A 118.2 N/A 123.5
104-5.305 N/A 0.104 N/A 0.003 N/A 5.305 N/A 0.035 N/A 5.513 N/A 2.6 N/A 134.7 N/A 140.0
104-10.372 N/A 0.104 N/A 0.003 N/A 10.372 N/A 0.055 N/A 10.580 N/A 2.6 N/A 263.4 N/A 268.7
103-11.096SS N/A 0.104 N/A 0.003 N/A 11.200 N/A 0.065 N/A 11.408 N/A 2.6 N/A 284.5 N/A 289.8
104-272VS N/A 0.105 N/A 0.003 N/A 0.275 N/A 0.005 N/A 0.485 N/A 2.7 N/A 7.0 N/A 12.3
104-417VS N/A 0.105 N/A 0.003 N/A 0.421 N/A 0.005 N/A 0.631 N/A 2.7 N/A 1.7 N/A 16.0
105-605 N/A 0.105 N/A 0.003 N/A 0.605 N/A 0.007 N/A 0.815 N/A 2.7 N/A 15.4 N/A 2.7
103-612SS N/A 0.105 N/A 0.003 N/A 0.622 N/A 0.009 N/A 0.832 N/A 2.7 N/A 15.8 N/A 21.1
104-787VS N/A 0.105 N/A 0.003 N/A 0.794 N/A 0.009 N/A 1.004 N/A 2.7 N/A 2.2 N/A 25.5
104-835VS N/A 0.105 N/A 0.003 N/A 0.843 N/A 0.010 N/A 1.053 N/A 2.7 N/A 21.4 N/A 26.7
107-1.675 N/A 0.107 N/A 0.003 N/A 1.675 N/A 0.015 N/A 1.889 N/A 2.7 N/A 42.6 N/A 48
105-2.500 N/A 0.105 N/A 0.003 N/A 2.500 N/A 0.020 N/A 2.710 N/A 2.7 N/A 63.5 N/A 68.8
103-2.675SS N/A 0.105 N/A 0.003 N/A 2.726 N/A 0.022 N/A 2.936 N/A 2.7 N/A 69.2 N/A 74.6
103-3.862 N/A 0.105 N/A 0.003 N/A 3.938 N/A 0.028 N/A 4.148 N/A 2.7 N/A 100 N/A 105.4
103-10.500SS N/A 0.105 N/A 0.003 N/A 10.660 N/A 0.060 N/A 10.870 N/A 2.7 N/A 270.8 N/A 276.1
103-10.710SS N/A 0.105 N/A 0.003 N/A 11.958 N/A 0.060 N/A 11.168 N/A 2.7 N/A 278.3 N/A 283.7
106-375 N/A 0.106 N/A 0.003 N/A 0.375 N/A 0.005 N/A 0.587 N/A 2.7 N/A 9.5 N/A 14.9
106-480 N/A 0.106 N/A 0.003 N/A 0.480 N/A 0.005 N/A 0.692 N/A 2.7 N/A 12.2 N/A 17.6
105-485PL N/A 0.106 N/A 0.003 N/A 0.487 N/A 0.005 N/A 0.699 N/A 2.7 N/A 12.4 N/A 17.8
106-570 N/A 0.106 N/A 0.003 N/A 0.570 N/A 0.007 N/A 0.782 N/A 2.7 N/A 14.5 N/A 19.9
Unit of Measure
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