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]
Print Back
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
 1 2 3 4 5 »  

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)

25-1.115 N/A 0.025 N/A 0.003 N/A 1.115 N/A 0.010 N/A 1.165 N/A 0.6 N/A 28.3 N/A 29.6
25-2.000 N/A 0.025 N/A 0.003 N/A 2.000 N/A 0.018 N/A 2.050 N/A 0.6 N/A 5.8 N/A 52.1
26-97 N/A 0.026 N/A 0.003 N/A 0.097 N/A 0.005 N/A 0.149 N/A 0.7 N/A 2.5 N/A 3.8
25-356SS N/A 0.026 N/A 0.003 N/A 0.366 N/A 0.005 N/A 0.418 N/A 0.7 N/A 9.3 N/A 1.6
26-492VS N/A 0.026 N/A 0.003 N/A 0.497 N/A 0.004 N/A 0.549 N/A 0.7 N/A 12.6 N/A 13.9
26-1.080 N/A 0.026 N/A 0.003 N/A 1.080 N/A 0.010 N/A 1.132 N/A 0.7 N/A 27.4 N/A 28.8
27-32 N/A 0.027 N/A 0.003 N/A 0.032 N/A 0.004 N/A 0.086 N/A 0.7 N/A 0.8 N/A 2.2
27-143 N/A 0.027 N/A 0.003 N/A 0.143 N/A 0.005 N/A 0.197 N/A 0.7 N/A 3.6 N/A 5.0
28-81 N/A 0.028 N/A 0.003 N/A 0.081 N/A 0.004 N/A 0.137 N/A 0.7 N/A 2.1 N/A 3.5
28-94 N/A 0.028 N/A 0.003 N/A 0.094 N/A 0.005 N/A 0.150 N/A 0.7 N/A 2.4 N/A 3.8
28-110 N/A 0.028 N/A 0.003 N/A 0.11 N/A 0.005 N/A 0.166 N/A 0.7 N/A 2.8 N/A 4.2
28-210SS N/A 0.028 N/A 0.003 N/A 0.213 N/A 0.005 N/A 0.269 N/A 0.7 N/A 5.4 N/A 6.8
28-320VS N/A 0.028 N/A 0.003 N/A 0.323 N/A 0.005 N/A 0.379 N/A 0.7 N/A 8.2 N/A 9.6
28-346VS N/A 0.028 N/A 0.003 N/A 0.351 N/A 0.005 N/A 0.407 N/A 0.7 N/A 8.9 N/A 1.3
28-457 N/A 0.028 N/A 0.003 N/A 0.457 N/A 0.005 N/A 0.513 N/A 0.7 N/A 11.6 N/A 13.0
28-457VS N/A 0.028 N/A 0.003 N/A 0.463 N/A 0.005 N/A 0.519 N/A 0.7 N/A 11.8 N/A 13.2
28-1.181 N/A 0.028 N/A 0.003 N/A 1.181 N/A 0.011 N/A 1.237 N/A 0.7 N/A 30.0 N/A 31.4
29-22 N/A 0.029 N/A 0.003 N/A 0.022 N/A 0.004 N/A 0.080 N/A 0.7 N/A 0.6 N/A 2
29-76 N/A 0.029 N/A 0.003 N/A 0.076 N/A 0.005 N/A 0.134 N/A 0.7 N/A 1.9 N/A 3.4
29-134 N/A 0.029 N/A 0.003 N/A 0.134 N/A 0.005 N/A 0.192 N/A 0.7 N/A 3.4 N/A 4.9
30-23 N/A 0.030 N/A 0.003 N/A 0.023 N/A 0.004 N/A 0.083 N/A 0.8 N/A 0.6 N/A 2.1
30-70 N/A 0.030 N/A 0.003 N/A 0.070 N/A 0.005 N/A 0.130 N/A 0.8 N/A 1.8 N/A 3.3
30-78 N/A 0.030 N/A 0.003 N/A 0.078 N/A 0.005 N/A 0.138 N/A 0.8 N/A 2.0 N/A 3.5
30-98 N/A 0.030 N/A 0.003 N/A 0.098 N/A 0.005 N/A 0.158 N/A 0.8 N/A 2.5 N/A 4.0
30-103 N/A 0.030 N/A 0.003 N/A 0.103 N/A 0.005 N/A 0.163 N/A 0.8 N/A 2.6 N/A 4.1
Unit of Measure
 1 2 3 4 5 »