Standard Size O-Rings (Nominal Dimensions)
O-Rings
Explore our AS-568 & Extended Standard Size O-Rings including our new 5/32" Nominal Cross Section O-Rings. Precision Associates' O-Rings are available off the shelf in several standard compounds. Or try O-Rings in one of 1,200+ specialty materials in 20 polymer groups, including Viton®, AFLAS®, EPDM, Nitrile, HNBR (HSN), XNBR, Neoprene®, Butyl, XNBR, Silicone, Fluorosilicone, Perfluoroelastomer, Urethane, Hypalon®, and Hydrin®.
Click here to view our 48 (5Mb) Catalog illustrated with full-size drawings of Standard Size O-Rings plus Dimensions and Tolerances.
Click here to view our 48 (5Mb) Catalog illustrated with full-size drawings of Standard Size O-Rings plus Dimensions and Tolerances.
Item # |
C/S (inches) |
C/S Tolerance (±) |
I.D. (inches) |
I.D. Tolerance (±) |
O.D. (REF) (inches) |
Nominal C/S (inches) |
Nominal I.D. (inches) |
Nominal O.D. (inches) |
Metric C/S (mm) |
Metric I.D. (mm) |
Metric O.D. (mm) |
---|---|---|---|---|---|---|---|---|---|---|---|
1-911 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.863 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.095 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 21.9 | Metric O.D. (mm) N/A 27.8 |
1-912 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.924 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.156 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 23.5 | Metric O.D. (mm) N/A 29.4 |
1-913 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.986 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.218 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 25.0 | Metric O.D. (mm) N/A 30.9 |
1-914 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.047 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.279 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 26.6 | Metric O.D. (mm) N/A 32.5 |
1-915 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.109 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.341 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 28.2 | Metric O.D. (mm) N/A 34.1 |
1-916 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.171 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.403 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 29.7 | Metric O.D. (mm) N/A 35.6 |
1-918 | C/S (inches) N/A 0.116 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.355 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.587 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 2.9 | Metric I.D. (mm) N/A 34.4 | Metric O.D. (mm) N/A 40.3 |
1-920 | C/S (inches) N/A 0.118 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.475 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.711 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 3.0 | Metric I.D. (mm) N/A 37.5 | Metric O.D. (mm) N/A 43.5 |
1-924 | C/S (inches) N/A 0.118 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 1.720 | I.D. Tolerance (±) N/A 0.015 | O.D. (REF) (inches) N/A 1.956 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 3.0 | Metric I.D. (mm) N/A 43.7 | Metric O.D. (mm) N/A 49.7 |
1-928 | C/S (inches) N/A 0.118 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 2.090 | I.D. Tolerance (±) N/A 0.018 | O.D. (REF) (inches) N/A 2.326 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 3.0 | Metric I.D. (mm) N/A 53.1 | Metric O.D. (mm) N/A 59.1 |
1-932 | C/S (inches) N/A 0.118 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 2.337 | I.D. Tolerance (±) N/A 0.020 | O.D. (REF) (inches) N/A 2.573 | Nominal C/S (inches) N/A | Nominal I.D. (inches) N/A | Nominal O.D. (inches) N/A | Metric C/S (mm) N/A 3.0 | Metric I.D. (mm) N/A 59.4 | Metric O.D. (mm) N/A 65.4 |
1-201 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.171 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.449 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3/16 | Nominal O.D. (inches) N/A 7/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 4.3 | Metric O.D. (mm) N/A 11.4 |
1-202 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.234 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.512 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 1/4 | Nominal O.D. (inches) N/A 1/2 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 5.9 | Metric O.D. (mm) N/A 13.0 |
1-203 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A .296 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.579 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5/16 | Nominal O.D. (inches) N/A 9/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 7.6 | Metric O.D. (mm) N/A 14.7 |
1-204 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.359 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.637 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3/8 | Nominal O.D. (inches) N/A 5/8 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 9.1 | Metric O.D. (mm) N/A 16.2 |
1-205 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.421 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.699 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 7/16 | Nominal O.D. (inches) N/A 11/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 10.7 | Metric O.D. (mm) N/A 17.8 |
1-206 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.484 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.762 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 1/2 | Nominal O.D. (inches) N/A 3/4 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 12.3 | Metric O.D. (mm) N/A 19.4 |
1-207 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.549 | I.D. Tolerance (±) N/A 0.007 | O.D. (REF) (inches) N/A 0.827 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 9/16 | Nominal O.D. (inches) N/A 13/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 13.9 | Metric O.D. (mm) N/A 21.0 |
1-208 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.609 | I.D. Tolerance (±) N/A 0.009 | O.D. (REF) (inches) N/A 0.887 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5/8 | Nominal O.D. (inches) N/A 7/8 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 15.5 | Metric O.D. (mm) N/A 22.5 |
1-209 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.672 | I.D. Tolerance (±) N/A 0.009 | O.D. (REF) (inches) N/A 0.950 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 11/16 | Nominal O.D. (inches) N/A 15/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 17.1 | Metric O.D. (mm) N/A 24.1 |
1-210 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.734 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.012 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3/4 | Nominal O.D. (inches) N/A 1 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 18.6 | Metric O.D. (mm) N/A 25.7 |
1-211 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.796 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.074 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 13/16 | Nominal O.D. (inches) N/A 1 1/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 20.2 | Metric O.D. (mm) N/A 27.3 |
1-212 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.859 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.137 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 7/8 | Nominal O.D. (inches) N/A 1 1/8 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 21.8 | Metric O.D. (mm) N/A 28.9 |
1-213 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.921 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.199 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 15/16 | Nominal O.D. (inches) N/A 1 3/16 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 23.4 | Metric O.D. (mm) N/A 30.5 |
1-214 | C/S (inches) N/A 0.139 | C/S Tolerance (±) N/A 0.004 | I.D. (inches) N/A 0.984 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.262 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 1 | Nominal O.D. (inches) N/A 1 1/4 | Metric C/S (mm) N/A 3.5 | Metric I.D. (mm) N/A 25.0 | Metric O.D. (mm) N/A 32.1 |