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 page (5Mb) Catalog illustrated with full-size drawings of Standard Size O-Rings plus Dimensions and Tolerances.
Click here to view our 48 page (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) |
---|---|---|---|---|---|---|---|---|---|---|---|
1-001 | N/A .040 | N/A .003 | N/A .029 | N/A .004 | N/A .109 | N/A 1/32 | N/A 1/32 | N/A 3/32 | N/A 1.0 | N/A 0.7 | N/A 2.8 |
40-70 | N/A .040 | N/A .003 | N/A .070 | N/A .005 | N/A .150 | N/A 1/32 | N/A 5/64 | N/A 9/64 | N/A 1.0 | N/A 1.8 | N/A 3.8 |
1-002 | N/A .050 | N/A .003 | N/A .042 | N/A .004 | N/A .142 | N/A 3/64 | N/A 3/64 | N/A 9/64 | N/A 1.3 | N/A 1.1 | N/A 3.6 |
1-003 | N/A .060 | N/A .003 | N/A .056 | N/A .004 | N/A .176 | N/A 1/16 | N/A 1/16 | N/A 11/64 | N/A 1.5 | N/A 1.4 | N/A 4.5 |
1-004 | N/A .070 | N/A .003 | N/A .070 | N/A .005 | N/A .210 | N/A 1/16 | N/A 5/64 | N/A 13/64 | N/A 1.8 | N/A 1.8 | N/A 5.3 |
1-005 | N/A .070 | N/A .003 | N/A .101 | N/A .005 | N/A .241 | N/A 1/16 | N/A 7/64 | N/A 15/64 | N/A 1.8 | N/A 2.6 | N/A 6.1 |
1-006 | N/A .070 | N/A .003 | N/A .114 | N/A .005 | N/A .254 | N/A 1/16 | N/A 1/8 | N/A 1/4 | N/A 1.8 | N/A 2.9 | N/A 6.5 |
1-007 | N/A .070 | N/A .003 | N/A .145 | N/A .005 | N/A .285 | N/A 1/16 | N/A 5/32 | N/A 9/32 | N/A 1.8 | N/A 3.7 | N/A 7.2 |
1-008 | N/A .070 | N/A .003 | N/A .176 | N/A .005 | N/A .316 | N/A 1/16 | N/A 3/16 | N/A 5/16 | N/A 1.8 | N/A 4.5 | N/A 8.0 |
1-009 | N/A .070 | N/A .003 | N/A .208 | N/A .005 | N/A .348 | N/A 1/16 | N/A 7/32 | N/A 11/32 | N/A 1.8 | N/A 5.3 | N/A 8.8 |
1-010 | N/A .070 | N/A .003 | N/A .239 | N/A .005 | N/A .379 | N/A 1/16 | N/A 1/4 | N/A 3/8 | N/A 1.8 | N/A 6.1 | N/A 9.6 |
1-011 | N/A .070 | N/A .003 | N/A .301 | N/A .005 | N/A .441 | N/A 1/16 | N/A 5/16 | N/A 7/16 | N/A 1.8 | N/A 7.6 | N/A 11.2 |
1-012 | N/A .070 | N/A .003 | N/A .364 | N/A .005 | N/A .504 | N/A 1/16 | N/A 3/8 | N/A 1/2 | N/A 1.8 | N/A 9.2 | N/A 12.8 |
1-013 | N/A .070 | N/A .003 | N/A .426 | N/A .005 | N/A .566 | N/A 1/16 | N/A 7/16 | N/A 9/16 | N/A 1.8 | N/A 10.8 | N/A 14.4 |
1-014 | N/A .070 | N/A .003 | N/A .489 | N/A .005 | N/A .629 | N/A 1/16 | N/A 1/2 | N/A 5/8 | N/A 1.8 | N/A 12.4 | N/A 16.0 |
1-015 | N/A .070 | N/A .003 | N/A .551 | N/A .007 | N/A .691 | N/A 1/16 | N/A 9/16 | N/A 11/16 | N/A 1.8 | N/A 14.0 | N/A 17.6 |
1-016 | N/A .070 | N/A .003 | N/A .614 | N/A .009 | N/A .754 | N/A 1/16 | N/A 5/8 | N/A 3/4 | N/A 1.8 | N/A 15.6 | N/A 19.2 |
1-017 | N/A .070 | N/A .003 | N/A .676 | N/A .009 | N/A .816 | N/A 1/16 | N/A 11/16 | N/A 13/16 | N/A 1.8 | N/A 17.2 | N/A 20.7 |
1-018 | N/A .070 | N/A .003 | N/A .739 | N/A .009 | N/A .879 | N/A 1/16 | N/A 3/4 | N/A 7/8 | N/A 1.8 | N/A 18.8 | N/A 22.3 |
1-019 | N/A .070 | N/A .003 | N/A .801 | N/A .009 | N/A .941 | N/A 1/16 | N/A 13/16 | N/A 15/16 | N/A 1.8 | N/A 20.3 | N/A 23.9 |
1-020 | N/A .070 | N/A .003 | N/A .864 | N/A .009 | N/A 1.004 | N/A 1/16 | N/A 7/8 | N/A 1 | N/A 1.8 | N/A 21.9 | N/A 25.5 |
1-021 | N/A .070 | N/A .003 | N/A .926 | N/A .009 | N/A 1.066 | N/A 1/16 | N/A 15/16 | N/A 1 1/16 | N/A 1.8 | N/A 23.5 | N/A 27.1 |
1-022 | N/A .070 | N/A .003 | N/A .989 | N/A .010 | N/A 1.129 | N/A 1/16 | N/A 1 | N/A 1 1/8 | N/A 1.8 | N/A 25.1 | N/A 28.7 |
1-023 | N/A .070 | N/A .003 | N/A 1.051 | N/A .010 | N/A 1.191 | N/A 1/16 | N/A 1 1/16 | N/A 1 3/16 | N/A 1.8 | N/A 26.7 | N/A 30.3 |
1-024 | N/A .070 | N/A .003 | N/A 1.114 | N/A .010 | N/A 1.254 | N/A 1/16 | N/A 1 1/8 | N/A 1 1/4 | N/A 1.8 | N/A 28.3 | N/A 31.9 |