AS568-351 O-Ring
Inside diameter 4.725″
Cross-section 0.210″
Outside diameter 5.145″
Metric (ID × CS) 120.01 × 5.33 mm
OD is derived: ID + 2 × CS = 4.725″ + 2 × 0.210″ = 5.145″.
Neighboring sizes (CS 0.210″ series)
| Dash | ID | OD | ID mm | vs -351 |
|---|---|---|---|---|
| -349 | 4.475″ | 4.895″ | 113.66 | ID −0.250″ |
| -350 | 4.600″ | 5.020″ | 116.84 | ID −0.125″ |
| -351 | 4.725″ | 5.145″ | 120.01 | — |
| -352 | 4.850″ | 5.270″ | 123.19 | ID +0.125″ |
| -353 | 4.975″ | 5.395″ | 126.36 | ID +0.250″ |
Same ID, other cross-sections
- AS568-427 — same 4.725″ ID with a 0.275″ cross-section (OD 5.275″)