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.

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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)

47-87 N/A 0.047 N/A 0.003 N/A 0.087 N/A 0.005 N/A 0.181 N/A 1.2 N/A 2.2 N/A 4.6
47-114 N/A 0.047 N/A 0.003 N/A 0.114 N/A 0.005 N/A 0.208 N/A 1.2 N/A 2.9 N/A 5.3
46-278VS N/A 0.047 N/A 0.003 N/A 0.283 N/A 0.005 N/A 0.377 N/A 1.2 N/A 7.2 N/A 9.6
46-1.130SS N/A 0.047 N/A 0.003 N/A 1.149 N/A 0.010 N/A 1.243 N/A 1.2 N/A 29.2 N/A 31.6
47-1.245SS N/A 0.047 N/A 0.003 N/A 1.257 N/A 0.011 N/A 1.351 N/A 1.2 N/A 31.9 N/A 34.3
47-1.453 N/A 0.047 N/A 0.003 N/A 1.453 N/A 0.013 N/A 1.547 N/A 1.2 N/A 36.9 N/A 39.3
47-1.575 N/A 0.047 N/A 0.003 N/A 1.575 N/A 0.013 N/A 1.669 N/A 1.2 N/A 40.0 N/A 42.4
47-1.672 N/A 0.047 N/A 0.003 N/A 1.672 N/A 0.013 N/A 1.766 N/A 1.2 N/A 42.5 N/A 44.9
47-1.891 N/A 0.047 N/A 0.003 N/A 1.891 N/A 0.015 N/A 1.985 N/A 1.2 N/A 48 N/A 5.4
47-1.934 N/A 0.047 N/A 0.003 N/A 1.934 N/A 0.015 N/A 2.028 N/A 1.2 N/A 49.1 N/A 51.5
47-1.954 N/A 0.047 N/A 0.003 N/A 1.961 N/A 0.015 N/A 2.055 N/A 1.2 N/A 49.8 N/A 52.2
47-2.115SS N/A 0.047 N/A 0.003 N/A 2.124 N/A 0.018 N/A 2.218 N/A 1.2 N/A 53.9 N/A 56.3
47-2.350 N/A 0.047 N/A 0.003 N/A 2.350 N/A 0.018 N/A 2.444 N/A 1.2 N/A 59.7 N/A 62.1
47-2.641 N/A 0.047 N/A 0.003 N/A 2.641 N/A 0.020 N/A 2.735 N/A 1.2 N/A 67.1 N/A 69.5
47-4.343 N/A 0.047 N/A 0.003 N/A 4.343 N/A 0.030 N/A 4.437 N/A 1.2 N/A 11.3 N/A 112.7
47-6.812 N/A 0.047 N/A 0.003 N/A 6.812 N/A 0.040 N/A 6.906 N/A 1.2 N/A 173 N/A 175.4
48-28 N/A 0.048 N/A 0.003 N/A 0.028 N/A 0.004 N/A 0.124 N/A 1.2 N/A 0.7 N/A 3.1
48-84 N/A 0.048 N/A 0.003 N/A 0.084 N/A 0.005 N/A 0.180 N/A 1.2 N/A 2.1 N/A 4.6
48-140 N/A 0.048 N/A 0.003 N/A 0.140 N/A 0.005 N/A 0.236 N/A 1.2 N/A 3.6 N/A 6
48-170 N/A 0.048 N/A 0.003 N/A 0.170 N/A 0.005 N/A 0.266 N/A 1.2 N/A 4.3 N/A 6.8
48-185 N/A 0.048 N/A 0.003 N/A 0.185 N/A 0.005 N/A 0.281 N/A 1.2 N/A 4.7 N/A 7.1
48-239 N/A 0.048 N/A 0.003 N/A 0.239 N/A 0.005 N/A 0.335 N/A 1.2 N/A 6.1 N/A 8.5
48-248 N/A 0.048 N/A 0.003 N/A 0.248 N/A 0.005 N/A 0.344 N/A 1.2 N/A 6.3 N/A 8.7
47-490SS N/A 0.048 N/A 0.003 N/A 0.496 N/A 0.005 N/A 0.592 N/A 1.2 N/A 12.6 N/A 15
48-1.375 N/A 0.048 N/A 0.003 N/A 1.375 N/A 0.013 N/A 1.471 N/A 1.2 N/A 34.9 N/A 37.4
Unit of Measure
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