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)

74-224 N/A 0.074 N/A 0.003 N/A 0.224 N/A 0.005 N/A 0.372 N/A 1.9 N/A 5.7 N/A 9.4
73-239SS N/A 0.074 N/A 0.003 N/A 0.241 N/A 0.005 N/A 0.389 N/A 1.9 N/A 6.1 N/A 9.9
74-317 N/A 0.074 N/A 0.003 N/A 0.317 N/A 0.005 N/A 0.465 N/A 1.9 N/A 8.1 N/A 11.8
74-350 N/A 0.074 N/A 0.003 N/A 0.350 N/A 0.005 N/A 0.498 N/A 1.9 N/A 8.9 N/A 12.6
74-614 N/A 0.074 N/A 0.003 N/A 0.614 N/A 0.009 N/A 0.762 N/A 1.9 N/A 15.6 N/A 19.4
74-6.100 N/A 0.074 N/A 0.003 N/A 6.080 N/A 0.035 N/A 6.228 N/A 1.9 N/A 154.4 N/A 158.2
75-85 N/A 0.075 N/A 0.003 N/A 0.085 N/A 0.005 N/A 0.235 N/A 1.9 N/A 2.2 N/A 6
75-134 N/A 0.075 N/A 0.003 N/A 0.134 N/A 0.005 N/A 0.284 N/A 1.9 N/A 3.4 N/A 7.2
75-165 N/A 0.075 N/A 0.003 N/A 0.165 N/A 0.005 N/A 0.315 N/A 1.9 N/A 4.2 N/A 8.0
74-362VS N/A 0.075 N/A 0.003 N/A 0.367 N/A 0.005 N/A 0.517 N/A 1.9 N/A 9.3 N/A 13.1
74-375VS N/A 0.075 N/A 0.003 N/A 0.379 N/A 0.005 N/A 0.529 N/A 1.9 N/A 9.6 N/A 13.4
74-401VS N/A 0.075 N/A 0.003 N/A 0.405 N/A 0.005 N/A 0.555 N/A 1.9 N/A 1.3 N/A 14.1
75-710 N/A 0.075 N/A 0.003 N/A 0.710 N/A 0.009 N/A 0.860 N/A 1.9 N/A 18.0 N/A 21.8
75-1.414 N/A 0.075 N/A 0.003 N/A 1.414 N/A 0.012 N/A 1.564 N/A 1.9 N/A 35.9 N/A 39.7
75-1.840 N/A 0.075 N/A 0.003 N/A 1.840 N/A 0.015 N/A 1.990 N/A 1.9 N/A 46.7 N/A 5.5
75-2.066 N/A 0.075 N/A 0.003 N/A 2.066 N/A 0.017 N/A 2.216 N/A 1.9 N/A 52.5 N/A 56.3
75-3.600 N/A 0.075 N/A 0.003 N/A 3.600 N/A 0.024 N/A 3.750 N/A 1.9 N/A 91.4 N/A 95.3
76-60 N/A 0.076 N/A 0.003 N/A 0.060 N/A 0.005 N/A 0.212 N/A 1.9 N/A 1.5 N/A 5.4
76-145 N/A 0.076 N/A 0.003 N/A 0.145 N/A 0.005 N/A 0.297 N/A 1.9 N/A 3.7 N/A 7.5
75-262SS N/A 0.076 N/A 0.003 N/A 0.266 N/A 0.005 N/A 0.418 N/A 1.9 N/A 6.8 N/A 1.6
76-277 N/A 0.076 N/A 0.003 N/A 0.277 N/A 0.005 N/A 0.429 N/A 1.9 N/A 7.0 N/A 1.9
76-382 N/A 0.076 N/A 0.003 N/A 0.382 N/A 0.005 N/A 0.534 N/A 1.9 N/A 9.7 N/A 13.6
76-432 N/A 0.076 N/A 0.003 N/A 0.432 N/A 0.005 N/A 0.584 N/A 1.9 N/A 11.0 N/A 14.8
75-489SS N/A 0.076 N/A 0.003 N/A 0.498 N/A 0.005 N/A 0.650 N/A 1.9 N/A 12.6 N/A 16.5
76-1.188 N/A 0.076 N/A 0.003 N/A 1.188 N/A 0.012 N/A 1.340 N/A 1.9 N/A 3.2 N/A 34.0
Unit of Measure
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