AS568-340 O-Ring
Inside diameter 3.350″
Cross-section 0.210″
Outside diameter 3.770″
Metric (ID × CS) 85.09 × 5.33 mm
OD is derived: ID + 2 × CS = 3.350″ + 2 × 0.210″ = 3.770″.
Neighboring sizes (CS 0.210″ series)
| Dash | ID | OD | ID mm | vs -340 |
|---|---|---|---|---|
| -338 | 3.100″ | 3.520″ | 78.74 | ID −0.250″ |
| -339 | 3.225″ | 3.645″ | 81.91 | ID −0.125″ |
| -340 | 3.350″ | 3.770″ | 85.09 | — |
| -341 | 3.475″ | 3.895″ | 88.27 | ID +0.125″ |
| -342 | 3.600″ | 4.020″ | 91.44 | ID +0.250″ |