Explore our AS-568 & Extended Standard Size O-Rings
Unit of Measure

C/S (inches)

0.176

C/S Tolerance (±)

0.005

I.D. (inches)

3.225

I.D. Tolerance (±)

0.024

O.D. (REF) (inches)

3.577

Nominal C/S (inches)

5/32

Nominal I.D. (inches)

3 1/4

Nominal O.D. (inches)

3 9/16

Metric C/S (mm)

4.5

Metric I.D. (mm)

81.9

Metric O.D. (mm)

90.9
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