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) |
---|---|---|---|---|---|---|---|---|---|---|---|
1-105 | 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 |
1-116 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.737 | I.D. Tolerance (±) N/A 0.009 | O.D. (REF) (inches) N/A 0.943 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 3/4 | Nominal O.D. (inches) N/A 15/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 18.7 | Metric O.D. (mm) N/A 24.0 |
1-117 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.799 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.005 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 13/16 | Nominal O.D. (inches) N/A 1 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 20.3 | Metric O.D. (mm) N/A 25.5 |
1-118 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.862 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.068 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 7/8 | Nominal O.D. (inches) N/A 1 1/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 21.9 | Metric O.D. (mm) N/A 27.1 |
1-119 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.924 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.130 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 15/16 | Nominal O.D. (inches) N/A 1 1/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 23.5 | Metric O.D. (mm) N/A 28.7 |
1-120 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 0.987 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.193 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 | Nominal O.D. (inches) N/A 1 3/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 25.1 | Metric O.D. (mm) N/A 30.3 |
1-121 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.049 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.255 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 1/16 | Nominal O.D. (inches) N/A 1 1/4 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 26.6 | Metric O.D. (mm) N/A 31.9 |
1-122 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.112 | I.D. Tolerance (±) N/A 0.010 | O.D. (REF) (inches) N/A 1.318 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 1/8 | Nominal O.D. (inches) N/A 1 5/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 28.2 | Metric O.D. (mm) N/A 33.5 |
1-123 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.174 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.380 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 3/16 | Nominal O.D. (inches) N/A 1 3/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 29.8 | Metric O.D. (mm) N/A 35.1 |
1-124 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.237 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.443 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 1/4 | Nominal O.D. (inches) N/A 1 7/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 31.4 | Metric O.D. (mm) N/A 36.7 |
1-125 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.299 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.505 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 5/16 | Nominal O.D. (inches) N/A 1 1/2 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 33.0 | Metric O.D. (mm) N/A 38.2 |
1-126 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.362 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.568 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 3/8 | Nominal O.D. (inches) N/A 1 9/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 34.6 | Metric O.D. (mm) N/A 39.8 |
1-127 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.424 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.630 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 7/16 | Nominal O.D. (inches) N/A 1 5/8 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 36.2 | Metric O.D. (mm) N/A 41.4 |
1-128 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.487 | I.D. Tolerance (±) N/A 0.012 | O.D. (REF) (inches) N/A 1.693 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 1/2 | Nominal O.D. (inches) N/A 1 11/16 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 37.8 | Metric O.D. (mm) N/A 43.0 |
1-129 | C/S (inches) N/A 0.103 | C/S Tolerance (±) N/A 0.003 | I.D. (inches) N/A 1.549 | I.D. Tolerance (±) N/A 0.015 | O.D. (REF) (inches) N/A 1.755 | Nominal C/S (inches) N/A 3/32 | Nominal I.D. (inches) N/A 1 9/16 | Nominal O.D. (inches) N/A 1 3/4 | Metric C/S (mm) N/A 2.6 | Metric I.D. (mm) N/A 39.3 | Metric O.D. (mm) N/A 44.6 |