AS568-339 O-Ring
Inside diameter 3.225″
Cross-section 0.210″
Outside diameter 3.645″
Metric (ID × CS) 81.91 × 5.33 mm
OD is derived: ID + 2 × CS = 3.225″ + 2 × 0.210″ = 3.645″.
Neighboring sizes (CS 0.210″ series)
| Dash | ID | OD | ID mm | vs -339 |
|---|---|---|---|---|
| -337 | 2.975″ | 3.395″ | 75.56 | ID −0.250″ |
| -338 | 3.100″ | 3.520″ | 78.74 | ID −0.125″ |
| -339 | 3.225″ | 3.645″ | 81.91 | — |
| -340 | 3.350″ | 3.770″ | 85.09 | ID +0.125″ |
| -341 | 3.475″ | 3.895″ | 88.27 | ID +0.250″ |