AS568 Standard O-Ring Tolerances
USA Military and Aerospace grade O-Rings typically refer to AS568 O-Ring Tolerances (slightly tighter than general purpose) and are available standard with most Military and Aerospace O-Ring specifications.
USA Standard Tolerances for Military and Aerospace Grade O-Rings
| Size | O-Ring ID (IN) | ID Tolerance (IN) | O-Ring CS (IN) | CS Tolerance (IN) |
|---|---|---|---|---|
| -001 | 0.029 | +/- 0.004 | 0.04 | +/- 0.003 |
| -002 | 0.042 | +/- 0.004 | 0.05 | +/- 0.003 |
| -003 | 0.056 | +/- 0.004 | 0.06 | +/- 0.003 |
| -004 | 0.07 | +/- 0.005 | 0.07 | +/- 0.003 |
| -005 | 0.101 | +/- 0.005 | 0.07 | +/- 0.003 |
| -006 | 0.114 | +/- 0.005 | 0.07 | +/- 0.003 |
| -007 | 0.145 | +/- 0.005 | 0.07 | +/- 0.003 |
| -008 | 0.176 | +/- 0.005 | 0.07 | +/- 0.003 |
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