AS568-381 O-Ring
Inside diameter 11.975″
Cross-section 0.210″
Outside diameter 12.395″
Metric (ID × CS) 304.16 × 5.33 mm
OD is derived: ID + 2 × CS = 11.975″ + 2 × 0.210″ = 12.395″.
Neighboring sizes (CS 0.210″ series)
| Dash | ID | OD | ID mm | vs -381 |
|---|---|---|---|---|
| -379 | 10.975″ | 11.395″ | 278.76 | ID −1.000″ |
| -380 | 11.475″ | 11.895″ | 291.46 | ID −0.500″ |
| -381 | 11.975″ | 12.395″ | 304.16 | — |
| -382 | 12.975″ | 13.395″ | 329.56 | ID +1.000″ |
| -383 | 13.975″ | 14.395″ | 354.96 | ID +2.000″ |
Same ID, other cross-sections
- AS568-453 — same 11.975″ ID with a 0.275″ cross-section (OD 12.525″)