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)

70-1.424 N/A 0.070 N/A 0.003 N/A 1.424 N/A 0.013 N/A 1.564 N/A 1.8 N/A 36.2 N/A 39.7
70-1.427 N/A 0.070 N/A 0.003 N/A 1.427 N/A 0.013 N/A 1.567 N/A 1.8 N/A 36.2 N/A 39.8
70-1.465 N/A 0.070 N/A 0.003 N/A 1.465 N/A 0.013 N/A 1.605 N/A 1.8 N/A 37.2 N/A 4.8
70-1.545 N/A 0.070 N/A 0.003 N/A 1.545 N/A 0.013 N/A 1.685 N/A 1.8 N/A 39.2 N/A 42.8
70-1.662 N/A 0.070 N/A 0.003 N/A 1.662 N/A 0.013 N/A 1.802 N/A 1.8 N/A 42.2 N/A 45.8
70-1.670 N/A 0.070 N/A 0.003 N/A 1.670 N/A 0.013 N/A 1.810 N/A 1.8 N/A 42.4 N/A 46
70-1.687 N/A 0.070 N/A 0.003 N/A 1.687 N/A 0.013 N/A 1.827 N/A 1.8 N/A 42.8 N/A 46.4
70-1.775 N/A 0.070 N/A 0.003 N/A 1.775 N/A 0.015 N/A 1.915 N/A 1.8 N/A 45.1 N/A 48.6
70-1.799 N/A 0.070 N/A 0.003 N/A 1.799 N/A 0.015 N/A 1.939 N/A 1.8 N/A 45.7 N/A 49.3
70-1.830 N/A 0.070 N/A 0.003 N/A 1.830 N/A 0.015 N/A 1.970 N/A 1.8 N/A 46.5 N/A 50
70-1.927 N/A 0.070 N/A 0.003 N/A 1.927 N/A 0.015 N/A 2.067 N/A 1.8 N/A 48.9 N/A 52.5
70-2.030 N/A 0.070 N/A 0.003 N/A 2.030 N/A 0.018 N/A 2.170 N/A 1.8 N/A 51.6 N/A 55.1
70-2.050 N/A 0.070 N/A 0.003 N/A 2.050 N/A 0.018 N/A 2.190 N/A 1.8 N/A 52.1 N/A 55.6
70-2.057ES N/A 0.070 N/A 0.003 N/A 2.060 N/A 0.018 N/A 2.200 N/A 1.8 N/A 52.3 N/A 55.9
70-2.093SS N/A 0.070 N/A 0.003 N/A 2.102 N/A 0.018 N/A 2.242 N/A 1.8 N/A 53.4 N/A 56.9
70-2.156 N/A 0.070 N/A 0.003 N/A 2.156 N/A 0.018 N/A 2.296 N/A 1.8 N/A 54.8 N/A 58.3
70-2.175 N/A 0.070 N/A 0.003 N/A 2.175 N/A 0.018 N/A 2.315 N/A 1.8 N/A 55.2 N/A 58.8
70-2.250 N/A 0.070 N/A 0.003 N/A 2.250 N/A 0.018 N/A 2.390 N/A 1.8 N/A 57.2 N/A 6.7
70-2.307 N/A 0.070 N/A 0.003 N/A 2.307 N/A 0.018 N/A 2.447 N/A 1.8 N/A 58.6 N/A 62.2
70-2.425 N/A 0.070 N/A 0.003 N/A 2.425 N/A 0.018 N/A 2.565 N/A 1.8 N/A 61.6 N/A 65.2
70-2.560 N/A 0.070 N/A 0.003 N/A 2.560 N/A 0.018 N/A 2.700 N/A 1.8 N/A 65 N/A 68.6
70-2.677 N/A 0.070 N/A 0.003 N/A 2.677 N/A 0.020 N/A 2.817 N/A 1.8 N/A 68 N/A 71.6
70-2.750ES N/A 0.070 N/A 0.003 N/A 2.754 N/A 0.020 N/A 2.894 N/A 1.8 N/A 70.0 N/A 73.5
70-2.800 N/A 0.070 N/A 0.003 N/A 2.800 N/A 0.020 N/A 2.940 N/A 1.8 N/A 71.1 N/A 74.7
70-2.921 N/A 0.070 N/A 0.003 N/A 2.921 N/A 0.020 N/A 3.061 N/A 1.8 N/A 74.2 N/A 77.7
Unit of Measure
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