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)

45-850 N/A 0.045 N/A 0.003 N/A 0.850 N/A 0.009 N/A 0.940 N/A 1.1 N/A 21.6 N/A 23.9
45-990 N/A 0.045 N/A 0.003 N/A 0.990 N/A 0.010 N/A 1.080 N/A 1.1 N/A 25.1 N/A 27.4
45-1.153 N/A 0.045 N/A 0.003 N/A 1.153 N/A 0.010 N/A 1.243 N/A 1.1 N/A 29.3 N/A 31.6
45-1.340 N/A 0.045 N/A 0.003 N/A 1.340 N/A 0.011 N/A 1.430 N/A 1.1 N/A 34 N/A 36.3
45-1.395 N/A 0.045 N/A 0.003 N/A 1.395 N/A 0.013 N/A 1.485 N/A 1.1 N/A 35.4 N/A 37.7
45-1.510 N/A 0.045 N/A 0.003 N/A 1.510 N/A 0.013 N/A 1.600 N/A 1.1 N/A 38.4 N/A 4.6
45-1.540 N/A 0.045 N/A 0.003 N/A 1.540 N/A 0.013 N/A 1.630 N/A 1.1 N/A 39.1 N/A 41.4
45-1.600 N/A 0.045 N/A 0.003 N/A 1.600 N/A 0.013 N/A 1.690 N/A 1.1 N/A 4.6 N/A 42.9
45-1.650 N/A 0.045 N/A 0.003 N/A 1.650 N/A 0.013 N/A 1.740 N/A 1.1 N/A 41.9 N/A 44.2
44-3.038SS N/A 0.045 N/A 0.003 N/A 3.122 N/A 0.024 N/A 3.212 N/A 1.1 N/A 79.3 N/A 81.6
45-6.690 N/A 0.045 N/A 0.003 N/A 6.667 N/A 0.040 N/A 6.757 N/A 1.1 N/A 169.3 N/A 171.6
46-152 N/A 0.046 N/A 0.003 N/A 0.152 N/A 0.005 N/A 0.244 N/A 1.2 N/A 3.9 N/A 6.2
45-165SS N/A 0.046 N/A 0.003 N/A 0.170 N/A 0.005 N/A 0.262 N/A 1.2 N/A 4.3 N/A 6.7
46-224 N/A 0.046 N/A 0.003 N/A 0.224 N/A 0.005 N/A 0.316 N/A 1.2 N/A 5.7 N/A 8.0
46-257 N/A 0.046 N/A 0.003 N/A 0.257 N/A 0.005 N/A 0.349 N/A 1.2 N/A 6.5 N/A 8.9
46-307 N/A 0.046 N/A 0.003 N/A 0.307 N/A 0.005 N/A 0.399 N/A 1.2 N/A 7.8 N/A 1.1
46-375 N/A 0.046 N/A 0.003 N/A 0.375 N/A 0.005 N/A 0.467 N/A 1.2 N/A 9.5 N/A 11.9
46-450 N/A 0.046 N/A 0.003 N/A 0.450 N/A 0.005 N/A 0.542 N/A 1.2 N/A 11.4 N/A 13.8
46-656 N/A 0.046 N/A 0.003 N/A 0.656 N/A 0.009 N/A 0.748 N/A 1.2 N/A 16.7 N/A 19.0
46-691 N/A 0.046 N/A 0.003 N/A 0.691 N/A 0.009 N/A 0.783 N/A 1.2 N/A 17.6 N/A 19.9
46-705 N/A 0.046 N/A 0.003 N/A 0.705 N/A 0.009 N/A 0.797 N/A 1.2 N/A 17.9 N/A 2.2
46-967VS N/A 0.046 N/A 0.003 N/A 0.976 N/A 0.009 N/A 1.068 N/A 1.2 N/A 24.8 N/A 27.1
46-1.800 N/A 0.046 N/A 0.003 N/A 1.807 N/A 0.015 N/A 1.899 N/A 1.2 N/A 45.9 N/A 48.2
46-3.455 N/A 0.046 N/A 0.003 N/A 3.455 N/A 0.024 N/A 3.547 N/A 1.2 N/A 87.8 N/A 9.1
47-62 N/A 0.047 N/A 0.003 N/A 0.062 N/A 0.004 N/A 0.156 N/A 1.2 N/A 1.6 N/A 4.0
Unit of Measure
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