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) |
---|---|---|---|---|---|---|---|---|---|---|---|
1-051 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 5.489 | I.D. Tolerance (±) N/A 0.037 | O.D. (REF) (inches) N/A 5.629 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 5 1/2 | Nominal O.D. (inches) N/A 5 5/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 139.4 | Metric O.D. (mm) N/A 143.0 |
1-052 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 5.739 | I.D. Tolerance (±) N/A 0.037 | O.D. (REF) (inches) N/A 5.879 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 5 3/4 | Nominal O.D. (inches) N/A 5 7/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 145.8 | Metric O.D. (mm) N/A 149.3 |
1-053 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 5.989 | I.D. Tolerance (±) N/A 0.037 | O.D. (REF) (inches) N/A 6.129 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 6 | Nominal O.D. (inches) N/A 6 1/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 152.1 | Metric O.D. (mm) N/A 155.7 |
1-054 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 6.239 | I.D. Tolerance (±) N/A 0.040 | O.D. (REF) (inches) N/A 6.379 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 6 1/4 | Nominal O.D. (inches) N/A 6 3/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 158.5 | Metric O.D. (mm) N/A 162.0 |
1-055 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 6.489 | I.D. Tolerance (±) N/A 0.040 | O.D. (REF) (inches) N/A 6.629 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 6 1/2 | Nominal O.D. (inches) N/A 6 5/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 164.8 | Metric O.D. (mm) N/A 168.4 |
1-056 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 6.739 | I.D. Tolerance (±) N/A 0.040 | O.D. (REF) (inches) N/A 6.879 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 6 3/4 | Nominal O.D. (inches) N/A 6 7/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 171.2 | Metric O.D. (mm) N/A 174.7 |
1-057 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 6.989 | I.D. Tolerance (±) N/A 0.040 | O.D. (REF) (inches) N/A 7.129 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 7 | Nominal O.D. (inches) N/A 7 1/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 177.5 | Metric O.D. (mm) N/A 181.1 |
1-058 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 7.239 | I.D. Tolerance (±) N/A 0.045 | O.D. (REF) (inches) N/A 7.379 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 7 1/2 | Nominal O.D. (inches) N/A 7 3/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 183.9 | Metric O.D. (mm) N/A 187.4 |
1-059 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 7.489 | I.D. Tolerance (±) N/A 0.045 | O.D. (REF) (inches) N/A 7.629 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 7 1/4 | Nominal O.D. (inches) N/A 7 5/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 190.2 | Metric O.D. (mm) N/A 193.8 |
1-060 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 7.739 | I.D. Tolerance (±) N/A 0.045 | O.D. (REF) (inches) N/A 7.879 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 7 3/4 | Nominal O.D. (inches) N/A 7 7/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 196.6 | Metric O.D. (mm) N/A 200.1 |
1-061 | C/S (inches) N/A 0.070 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 7.989 | I.D. Tolerance (±) N/A 0.045 | O.D. (REF) (inches) N/A 8.129 | Nominal C/S (inches) N/A 1/16 | Nominal I.D. (inches) N/A 8 | Nominal O.D. (inches) N/A 8 1/8 | Metric C/S (mm) N/A 1.8 | Metric I.D. (mm) N/A 202.9 | Metric O.D. (mm) N/A 206.5 |
1-102 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.050 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.256 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1/16 | Nominal O.D. (inches) N/A 1/4 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 1.3 | Metric O.D. (mm) N/A 6.5 |
1-103 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.081 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.287 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 3/32 | Nominal O.D. (inches) N/A 9/32 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 2.1 | Metric O.D. (mm) N/A 7.3 |
1-104 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.112 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.318 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1/8 | Nominal O.D. (inches) N/A 5/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 2.8 | Metric O.D. (mm) N/A 8.1 |
1-105 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.143 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.349 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 5/32 | Nominal O.D. (inches) N/A 11/32 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 3.6 | Metric O.D. (mm) N/A 8.9 |
1-106 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.175 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.381 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 3/16 | Nominal O.D. (inches) N/A 3/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 4.4 | Metric O.D. (mm) N/A 9.7 |
1-107 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.206 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.412 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 7/32 | Nominal O.D. (inches) N/A 13/32 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 5.2 | Metric O.D. (mm) N/A 10.5 |
1-108 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.237 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.443 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1/4 | Nominal O.D. (inches) N/A 7/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 6.0 | Metric O.D. (mm) N/A 11.3 |
1-109 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.299 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.505 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 5/16 | Nominal O.D. (inches) N/A 1/2 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 7.6 | Metric O.D. (mm) N/A 12.8 |
1-110 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.362 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.568 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 3/8 | Nominal O.D. (inches) N/A 9/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 9.2 | Metric O.D. (mm) N/A 14.4 |
1-111 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.424 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.630 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 7/16 | Nominal O.D. (inches) N/A 5/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 10.8 | Metric O.D. (mm) N/A 16.0 |
1-112 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.487 | I.D. Tolerance (±) N/A 0.005 | O.D. (REF) (inches) N/A 0.693 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1/2 | Nominal O.D. (inches) N/A 11/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 12.4 | Metric O.D. (mm) N/A 17.6 |
1-113 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.549 | I.D. Tolerance (±) N/A 0.007 | O.D. (REF) (inches) N/A 0.755 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 9/16 | Nominal O.D. (inches) N/A 3/4 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 13.9 | Metric O.D. (mm) N/A 19.2 |
1-114 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.612 | I.D. Tolerance (±) N/A 0.009 | O.D. (REF) (inches) N/A 0.818 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 5/8 | Nominal O.D. (inches) N/A 13/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 15.5 | Metric O.D. (mm) N/A 20.8 |
1-115 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.674 | I.D. Tolerance (±) N/A 0.009 | O.D. (REF) (inches) N/A 0.880 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 11/16 | Nominal O.D. (inches) N/A 7/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 17.1 | Metric O.D. (mm) N/A 22.4 |