AS568-321 O-Ring
Inside diameter 1.162″
Cross-section 0.210″
Outside diameter 1.582″
Metric (ID × CS) 29.51 × 5.33 mm
OD is derived: ID + 2 × CS = 1.162″ + 2 × 0.210″ = 1.582″.
Neighboring sizes (CS 0.210″ series)
| Dash | ID | OD | ID mm | vs -321 |
|---|---|---|---|---|
| -319 | 1.037″ | 1.457″ | 26.34 | ID −0.125″ |
| -320 | 1.100″ | 1.520″ | 27.94 | ID −0.062″ |
| -321 | 1.162″ | 1.582″ | 29.51 | — |
| -322 | 1.225″ | 1.645″ | 31.12 | ID +0.063″ |
| -323 | 1.287″ | 1.707″ | 32.69 | ID +0.125″ |