AS568-157 O-Ring
Inside diameter 4.487″
Cross-section 0.103″
Outside diameter 4.693″
Metric (ID × CS) 113.97 × 2.62 mm
OD is derived: ID + 2 × CS = 4.487″ + 2 × 0.103″ = 4.693″.
Neighboring sizes (CS 0.103″ series)
| Dash | ID | OD | ID mm | vs -157 |
|---|---|---|---|---|
| -155 | 3.987″ | 4.193″ | 101.27 | ID −0.500″ |
| -156 | 4.237″ | 4.443″ | 107.62 | ID −0.250″ |
| -157 | 4.487″ | 4.693″ | 113.97 | — |
| -158 | 4.737″ | 4.943″ | 120.32 | ID +0.250″ |
| -159 | 4.987″ | 5.193″ | 126.67 | ID +0.500″ |