AS568-018 O-Ring
Inside diameter 0.739″
Cross-section 0.070″
Outside diameter 0.879″
Metric (ID × CS) 18.77 × 1.78 mm
OD is derived: ID + 2 × CS = 0.739″ + 2 × 0.070″ = 0.879″.
Neighboring sizes (CS 0.070″ series)
| Dash | ID | OD | ID mm | vs -018 |
|---|---|---|---|---|
| -016 | 0.614″ | 0.754″ | 15.60 | ID −0.125″ |
| -017 | 0.676″ | 0.816″ | 17.17 | ID −0.063″ |
| -018 | 0.739″ | 0.879″ | 18.77 | — |
| -019 | 0.801″ | 0.941″ | 20.35 | ID +0.062″ |
| -020 | 0.864″ | 1.004″ | 21.95 | ID +0.125″ |