AS568-431 O-Ring
Inside diameter 5.225″
Cross-section 0.275″
Outside diameter 5.775″
Metric (ID × CS) 132.71 × 6.99 mm
OD is derived: ID + 2 × CS = 5.225″ + 2 × 0.275″ = 5.775″.
Neighboring sizes (CS 0.275″ series)
| Dash | ID | OD | ID mm | vs -431 |
|---|---|---|---|---|
| -429 | 4.975″ | 5.525″ | 126.36 | ID −0.250″ |
| -430 | 5.100″ | 5.650″ | 129.54 | ID −0.125″ |
| -431 | 5.225″ | 5.775″ | 132.71 | — |
| -432 | 5.350″ | 5.900″ | 135.89 | ID +0.125″ |
| -433 | 5.475″ | 6.025″ | 139.06 | ID +0.250″ |
Same ID, other cross-sections
- AS568-355 — same 5.225″ ID with a 0.210″ cross-section (OD 5.645″)