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)

106-665VS N/A 0.107 N/A 0.004 N/A 0.674 N/A 0.009 N/A 0.888 N/A 2.7 N/A 17.1 N/A 22.6
108-305 N/A 0.108 N/A 0.004 N/A 0.305 N/A 0.005 N/A 0.521 N/A 2.7 N/A 7.7 N/A 13.2
108-1.674 N/A 0.108 N/A 0.004 N/A 1.674 N/A 0.015 N/A 1.890 N/A 2.7 N/A 42.5 N/A 48
108-2.487 N/A 0.108 N/A 0.004 N/A 2.487 N/A 0.020 N/A 2.703 N/A 2.7 N/A 63.2 N/A 68.7
109-70 N/A 0.109 N/A 0.004 N/A 0.070 N/A 0.005 N/A 0.288 N/A 2.8 N/A 1.8 N/A 7.3
109-562 N/A 0.109 N/A 0.004 N/A 0.562 N/A 0.007 N/A 0.780 N/A 2.8 N/A 14.3 N/A 19.8
108-2.100VS N/A 0.109 N/A 0.004 N/A 2.117 N/A 0.020 N/A 2.335 N/A 2.8 N/A 53.8 N/A 59.3
110-265NS N/A 0.110 N/A 0.004 N/A 0.264 N/A 0.005 N/A 0.484 N/A 2.8 N/A 6.7 N/A 12.3
110-299 N/A 0.110 N/A 0.004 N/A 0.299 N/A 0.005 N/A 0.519 N/A 2.8 N/A 7.6 N/A 13.2
110-438 N/A 0.110 N/A 0.004 N/A 0.438 N/A 0.005 N/A 0.658 N/A 2.8 N/A 11.1 N/A 16.7
110-487 N/A 0.110 N/A 0.004 N/A 0.487 N/A 0.005 N/A 0.707 N/A 2.8 N/A 12.4 N/A 18
111-1.424 N/A 0.111 N/A 0.004 N/A 1.424 N/A 0.012 N/A 1.646 N/A 2.8 N/A 36.2 N/A 41.8
111-3.422 N/A 0.111 N/A 0.004 N/A 3.422 N/A 0.024 N/A 3.644 N/A 2.8 N/A 86.9 N/A 92.6
112-549ES N/A 0.112 N/A 0.004 N/A 0.550 N/A 0.007 N/A 0.774 N/A 2.8 N/A 14.0 N/A 19.7
113-477 N/A 0.113 N/A 0.004 N/A 0.477 N/A 0.005 N/A 0.703 N/A 2.9 N/A 12.1 N/A 17.9
113-539 N/A 0.113 N/A 0.004 N/A 0.539 N/A 0.005 N/A 0.765 N/A 2.9 N/A 13.7 N/A 19.4
113-674 N/A 0.113 N/A 0.004 N/A 0.674 N/A 0.009 N/A 0.900 N/A 2.9 N/A 17.1 N/A 22.9
115-2.683 N/A 0.115 N/A 0.004 N/A 2.683 N/A 0.020 N/A 2.913 N/A 2.9 N/A 68.1 N/A 74
117-4.750 N/A 0.117 N/A 0.004 N/A 4.734 N/A 0.030 N/A 4.968 N/A 3.0 N/A 12.2 N/A 126.2
118-352 N/A 0.118 N/A 0.004 N/A 0.352 N/A 0.005 N/A 0.588 N/A 3.0 N/A 8.9 N/A 14.9
118-453 N/A 0.118 N/A 0.004 N/A 0.453 N/A 0.005 N/A 0.689 N/A 3.0 N/A 11.5 N/A 17.5
118-709 N/A 0.118 N/A 0.004 N/A 0.709 N/A 0.009 N/A 0.945 N/A 3.0 N/A 18.0 N/A 24.0
118-953 N/A 0.118 N/A 0.004 N/A 0.953 N/A 0.010 N/A 1.189 N/A 3.0 N/A 24.2 N/A 3.2
118-2.342 N/A 0.118 N/A 0.004 N/A 2.342 N/A 0.020 N/A 2.578 N/A 3.0 N/A 59.5 N/A 65.5
118-2.913 N/A 0.118 N/A 0.004 N/A 2.913 N/A 0.024 N/A 3.149 N/A 3.0 N/A 74 N/A 80.0
Unit of Measure
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