AS568-212 O-Ring
Inside diameter 0.859″
Cross-section 0.139″
Outside diameter 1.137″
Metric (ID × CS) 21.82 × 3.53 mm
OD is derived: ID + 2 × CS = 0.859″ + 2 × 0.139″ = 1.137″.
Neighboring sizes (CS 0.139″ series)
| Dash | ID | OD | ID mm | vs -212 |
|---|---|---|---|---|
| -210 | 0.734″ | 1.012″ | 18.64 | ID −0.125″ |
| -211 | 0.796″ | 1.074″ | 20.22 | ID −0.063″ |
| -212 | 0.859″ | 1.137″ | 21.82 | — |
| -213 | 0.921″ | 1.199″ | 23.39 | ID +0.062″ |
| -214 | 0.984″ | 1.262″ | 24.99 | ID +0.125″ |