AS568-161 O-Ring
Inside diameter 5.487″
Cross-section 0.103″
Outside diameter 5.693″
Metric (ID × CS) 139.37 × 2.62 mm
OD is derived: ID + 2 × CS = 5.487″ + 2 × 0.103″ = 5.693″.
Neighboring sizes (CS 0.103″ series)
| Dash | ID | OD | ID mm | vs -161 |
|---|---|---|---|---|
| -159 | 4.987″ | 5.193″ | 126.67 | ID −0.500″ |
| -160 | 5.237″ | 5.443″ | 133.02 | ID −0.250″ |
| -161 | 5.487″ | 5.693″ | 139.37 | — |
| -162 | 5.737″ | 5.943″ | 145.72 | ID +0.250″ |
| -163 | 5.987″ | 6.193″ | 152.07 | ID +0.500″ |