AS 568 O-Rings from PAI

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.

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)
1-910	N/A 0.097	N/A 0.003	N/A 0.755	N/A 0.009	N/A 0.949	N/A	N/A	N/A	N/A 2.5	N/A 19.2	N/A 24.1
1-911	N/A 0.116	N/A 0.004	N/A 0.863	N/A 0.010	N/A 1.095	N/A	N/A	N/A	N/A 2.9	N/A 21.9	N/A 27.8
1-912	N/A 0.116	N/A 0.004	N/A 0.924	N/A 0.010	N/A 1.156	N/A	N/A	N/A	N/A 2.9	N/A 23.5	N/A 29.4
1-913	N/A 0.116	N/A 0.004	N/A 0.986	N/A 0.010	N/A 1.218	N/A	N/A	N/A	N/A 2.9	N/A 25.0	N/A 30.9
1-914	N/A 0.116	N/A 0.004	N/A 1.047	N/A 0.010	N/A 1.279	N/A	N/A	N/A	N/A 2.9	N/A 26.6	N/A 32.5
1-915	N/A 0.116	N/A 0.004	N/A 1.109	N/A 0.012	N/A 1.341	N/A	N/A	N/A	N/A 2.9	N/A 28.2	N/A 34.1
1-916	N/A 0.116	N/A 0.004	N/A 1.171	N/A 0.012	N/A 1.403	N/A	N/A	N/A	N/A 2.9	N/A 29.7	N/A 35.6
1-918	N/A 0.116	N/A 0.004	N/A 1.355	N/A 0.012	N/A 1.587	N/A	N/A	N/A	N/A 2.9	N/A 34.4	N/A 40.3
1-920	N/A 0.118	N/A 0.004	N/A 1.475	N/A 0.012	N/A 1.711	N/A	N/A	N/A	N/A 3.0	N/A 37.5	N/A 43.5
1-924	N/A 0.118	N/A 0.004	N/A 1.720	N/A 0.015	N/A 1.956	N/A	N/A	N/A	N/A 3.0	N/A 43.7	N/A 49.7
1-928	N/A 0.118	N/A 0.004	N/A 2.090	N/A 0.018	N/A 2.326	N/A	N/A	N/A	N/A 3.0	N/A 53.1	N/A 59.1
1-932	N/A 0.118	N/A 0.004	N/A 2.337	N/A 0.020	N/A 2.573	N/A	N/A	N/A	N/A 3.0	N/A 59.4	N/A 65.4
1-514	N/A 0.176	N/A 0.005	N/A 0.975	N/A 0.010	N/A 1.327	N/A 5/32	N/A 1	N/A 1 5/16	N/A 4.5	N/A 24.8	N/A 33.7
1-515	N/A 0.176	N/A 0.005	N/A 1.038	N/A 0.010	N/A 1.390	N/A 5/32	N/A 1 1/16	N/A 1 3/8	N/A 4.5	N/A 26.4	N/A 35.3
1-516	N/A 0.176	N/A 0.005	N/A 1.100	N/A 0.012	N/A 1.452	N/A 5/32	N/A 1 1/8	N/A 1 7/16	N/A 4.5	N/A 24.9	N/A 36.9
1-517	N/A 0.176	N/A 0.005	N/A 1.163	N/A 0.012	N/A 1.515	N/A 5/32	N/A 1 3/16	N/A 1 1/2	N/A 4.5	N/A 29.5	N/A 38.5
1-518	N/A 0.176	N/A 0.005	N/A 1.225	N/A 0.012	N/A 1.577	N/A 5/32	N/A 1 1/4	N/A 1 9/16	N/A 4.5	N/A 31.1	N/A 40.1
1-519	N/A 0.176	N/A 0.005	N/A 1.288	N/A 0.012	N/A 1.640	N/A 5/32	N/A 1 5/16	N/A 1 5/8	N/A 4.5	N/A 32.7	N/A 41.7
1-520	N/A 0.176	N/A 0.005	N/A 1.350	N/A 0.012	N/A 1.702	N/A 5/32	N/A 1 3/8	N/A 1 11/16	N/A 4.5	N/A 34.3	N/A 43.2
1-521	N/A 0.176	N/A 0.005	N/A 1.413	N/A 0.012	N/A 1.765	N/A 5/32	N/A 1 7/16	N/A 1 3/4	N/A 4.5	N/A 35.9	N/A 44.8
1-522	N/A 0.176	N/A 0.005	N/A 1.475	N/A 0.015	N/A 1.827	N/A 5/32	N/A 1 1/2	N/A 1 13/16	N/A 4.5	N/A 37.5	N/A 46.4
1-524	N/A 0.176	N/A 0.005	N/A 1.600	N/A 0.015	N/A 1.952	N/A 5/32	N/A 1 5/8	N/A 1 15/16	N/A 4.5	N/A 40.6	N/A 49.6
1-526	N/A 0.176	N/A 0.005	N/A 1.725	N/A 0.015	N/A 2.077	N/A 5/32	N/A 1 3/4	N/A 2 1/16	N/A 4.5	N/A 43.8	N/A 52.8
1-528	N/A 0.176	N/A 0.005	N/A 1.850	N/A 0.015	N/A 2.202	N/A 5/32	N/A 1 7/8	N/A 2 3/16	N/A 4.5	N/A 47.0	N/A 55.9
1-530	N/A 0.176	N/A 0.005	N/A 1.975	N/A 0.018	N/A 2.327	N/A 5/32	N/A 2	N/A 2 5/16	N/A 4.5	N/A 50.2	N/A 59.1

N/A 0.003

N/A 0.755

N/A 0.009

N/A 0.949

N/A

N/A 2.5

N/A 19.2

N/A 24.1

1-911

N/A 0.116

N/A 0.004

N/A 0.863

N/A 0.010

N/A 1.095

N/A

N/A 2.9

N/A 21.9

N/A 27.8

1-912

N/A 0.116

N/A 0.004

N/A 0.924

N/A 0.010

N/A 1.156

N/A

N/A 2.9

N/A 23.5

N/A 29.4

1-913

N/A 0.116

N/A 0.004

N/A 0.986

N/A 0.010

N/A 1.218

N/A

N/A 2.9

N/A 25.0

N/A 30.9

1-914

N/A 0.116

N/A 0.004

N/A 1.047

N/A 0.010

N/A 1.279

N/A

N/A 2.9

N/A 26.6

N/A 32.5

1-915

N/A 0.116

N/A 0.004

N/A 1.109

N/A 0.012

N/A 1.341

N/A

N/A 2.9

N/A 28.2

N/A 34.1

1-916

N/A 0.116

N/A 0.004

N/A 1.171

N/A 0.012

N/A 1.403

N/A

N/A 2.9

N/A 29.7

N/A 35.6

1-918

N/A 0.116

N/A 0.004

N/A 1.355

N/A 0.012

N/A 1.587

N/A

N/A 2.9

N/A 34.4

N/A 40.3

1-920

N/A 0.118

N/A 0.004

N/A 1.475

N/A 0.012

N/A 1.711

N/A

N/A 3.0

N/A 37.5

N/A 43.5

1-924

N/A 0.118

N/A 0.004

N/A 1.720

N/A 0.015

N/A 1.956

N/A

N/A 3.0

N/A 43.7

N/A 49.7

1-928

N/A 0.118

N/A 0.004

N/A 2.090

N/A 0.018

N/A 2.326

N/A

N/A 3.0

N/A 53.1

N/A 59.1

1-932

N/A 0.118

N/A 0.004

N/A 2.337

N/A 0.020

N/A 2.573

N/A

N/A 3.0

N/A 59.4

N/A 65.4

1-514

N/A 0.176

N/A 0.005

N/A 0.975

N/A 0.010

N/A 1.327

N/A 5/32

N/A 1

N/A 1 5/16

N/A 4.5

N/A 24.8

N/A 33.7

1-515

N/A 0.176

N/A 0.005

N/A 1.038

N/A 0.010

N/A 1.390

N/A 5/32

N/A 1 1/16

N/A 1 3/8

N/A 4.5

N/A 26.4

N/A 35.3

1-516

N/A 0.176

N/A 0.005

N/A 1.100

N/A 0.012

N/A 1.452

N/A 5/32

N/A 1 1/8

N/A 1 7/16

N/A 4.5

N/A 24.9

N/A 36.9

1-517

N/A 0.176

N/A 0.005

N/A 1.163

N/A 0.012

N/A 1.515

N/A 5/32

N/A 1 3/16

N/A 1 1/2

N/A 4.5

N/A 29.5

N/A 38.5

1-518

N/A 0.176

N/A 0.005

N/A 1.225

N/A 0.012

N/A 1.577

N/A 5/32

N/A 1 1/4

N/A 1 9/16

N/A 4.5

N/A 31.1

N/A 40.1

1-519

N/A 0.176

N/A 0.005

N/A 1.288

N/A 0.012

N/A 1.640

N/A 5/32

N/A 1 5/16

N/A 1 5/8

N/A 4.5

N/A 32.7

N/A 41.7

1-520

N/A 0.176

N/A 0.005

N/A 1.350

N/A 0.012

N/A 1.702

N/A 5/32

N/A 1 3/8

N/A 1 11/16

N/A 4.5

N/A 34.3

N/A 43.2

1-521

N/A 0.176

N/A 0.005

N/A 1.413

N/A 0.012

N/A 1.765

N/A 5/32

N/A 1 7/16

N/A 1 3/4

N/A 4.5

N/A 35.9

N/A 44.8

1-522

N/A 0.176

N/A 0.005

N/A 1.475

N/A 0.015

N/A 1.827

N/A 5/32

N/A 1 1/2

N/A 1 13/16

N/A 4.5

N/A 37.5

N/A 46.4

1-524

N/A 0.176

N/A 0.005

N/A 1.600

N/A 0.015

N/A 1.952

N/A 5/32

N/A 1 5/8

N/A 1 15/16

N/A 4.5

N/A 40.6

N/A 49.6

1-526

N/A 0.176

N/A 0.005

N/A 1.725

N/A 0.015

N/A 2.077

N/A 5/32

N/A 1 3/4

N/A 2 1/16

N/A 4.5

N/A 43.8

N/A 52.8

1-528

N/A 0.176

N/A 0.005

N/A 1.850

N/A 0.015

N/A 2.202

N/A 5/32

N/A 1 7/8

N/A 2 3/16

N/A 4.5

N/A 47.0

N/A 55.9

1-530

N/A 0.176

N/A 0.005

N/A 1.975

N/A 0.018

N/A 2.327

N/A 5/32

N/A 2

N/A 2 5/16

N/A 4.5

N/A 50.2

N/A 59.1