AS568-203 O-Ring
Inside diameter 0.296″
Cross-section 0.139″
Outside diameter 0.574″
Metric (ID × CS) 7.52 × 3.53 mm
OD is derived: ID + 2 × CS = 0.296″ + 2 × 0.139″ = 0.574″.
Neighboring sizes (CS 0.139″ series)
| Dash | ID | OD | ID mm | vs -203 |
|---|---|---|---|---|
| -201 | 0.171″ | 0.449″ | 4.34 | ID −0.125″ |
| -202 | 0.234″ | 0.512″ | 5.94 | ID −0.062″ |
| -203 | 0.296″ | 0.574″ | 7.52 | — |
| -204 | 0.359″ | 0.637″ | 9.12 | ID +0.063″ |
| -205 | 0.421″ | 0.699″ | 10.69 | ID +0.125″ |