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)

93-085 N/A 0.093 N/A 0.003 N/A 0.085 N/A 0.005 N/A 0.271 N/A 2.4 N/A 2.2 N/A 6.9
93-166 N/A 0.093 N/A 0.003 N/A 0.166 N/A 0.005 N/A 0.352 N/A 2.4 N/A 4.2 N/A 8.9
93-250 N/A 0.093 N/A 0.003 N/A 0.250 N/A 0.005 N/A 0.436 N/A 2.4 N/A 6.4 N/A 11.1
93-437ES N/A 0.093 N/A 0.003 N/A 0.438 N/A 0.005 N/A 0.624 N/A 2.4 N/A 11.1 N/A 15.8
93-500 N/A 0.093 N/A 0.003 N/A 0.500 N/A 0.005 N/A 0.686 N/A 2.4 N/A 12.7 N/A 17.4
92-635SS N/A 0.093 N/A 0.003 N/A 0.644 N/A 0.009 N/A 0.830 N/A 2.4 N/A 16.4 N/A 21.1
91-760SS N/A 0.093 N/A 0.003 N/A 0.773 N/A 0.009 N/A 0.959 N/A 2.4 N/A 19.6 N/A 24.4
93-1.040 N/A 0.093 N/A 0.003 N/A 1.040 N/A 0.010 N/A 1.226 N/A 2.4 N/A 26.4 N/A 31.1
93-1.065 N/A 0.093 N/A 0.003 N/A 1.065 N/A 0.010 N/A 1.251 N/A 2.4 N/A 27.1 N/A 31.8
93-1.415 N/A 0.093 N/A 0.003 N/A 1.415 N/A 0.012 N/A 1.601 N/A 2.4 N/A 35.9 N/A 4.7
93-1.689NS N/A 0.093 N/A 0.003 N/A 1.685 N/A 0.015 N/A 1.871 N/A 2.4 N/A 42.8 N/A 47.5
93-1.750 N/A 0.093 N/A 0.003 N/A 1.744 N/A 0.015 N/A 1.930 N/A 2.4 N/A 44.3 N/A 49
93-1.888 N/A 0.093 N/A 0.003 N/A 1.888 N/A 0.015 N/A 2.074 N/A 2.4 N/A 48 N/A 52.7
93-2.277 N/A 0.093 N/A 0.003 N/A 2.277 N/A 0.017 N/A 2.463 N/A 2.4 N/A 57.8 N/A 62.6
91-6.394SS N/A 0.093 N/A 0.003 N/A 6.510 N/A 0.040 N/A 6.696 N/A 2.4 N/A 165.4 N/A 17.1
93-11.500 N/A 0.093 N/A 0.003 N/A 11.541 N/A 0.065 N/A 11.727 N/A 2.4 N/A 293.1 N/A 297.9
94-57 N/A 0.094 N/A 0.003 N/A 0.057 N/A 0.005 N/A 0.245 N/A 2.4 N/A 1.4 N/A 6.2
94-142 N/A 0.094 N/A 0.003 N/A 0.142 N/A 0.005 N/A 0.330 N/A 2.4 N/A 3.6 N/A 8.4
94-523 N/A 0.094 N/A 0.003 N/A 0.523 N/A 0.005 N/A 0.711 N/A 2.4 N/A 13.3 N/A 18.1
92-590SS N/A 0.094 N/A 0.003 N/A 0.601 N/A 0.007 N/A 0.789 N/A 2.4 N/A 15.3 N/A 20
94-656 N/A 0.094 N/A 0.003 N/A 0.656 N/A 0.007 N/A 0.844 N/A 2.4 N/A 16.7 N/A 21.5
94-1.188 N/A 0.094 N/A 0.003 N/A 1.188 N/A 0.012 N/A 1.376 N/A 2.4 N/A 3.2 N/A 35.0
93-1.320SS N/A 0.094 N/A 0.003 N/A 1.330 N/A 0.012 N/A 1.518 N/A 2.4 N/A 33.8 N/A 38.6
94-1.437 N/A 0.094 N/A 0.003 N/A 1.437 N/A 0.012 N/A 1.625 N/A 2.4 N/A 36.5 N/A 41.3
93-1.888ES N/A 0.094 N/A 0.003 N/A 1.910 N/A 0.015 N/A 2.098 N/A 2.4 N/A 48.5 N/A 53.3
Unit of Measure
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