AS568-429 O-Ring
Inside diameter 4.975″
Cross-section 0.275″
Outside diameter 5.525″
Metric (ID × CS) 126.36 × 6.99 mm
OD is derived: ID + 2 × CS = 4.975″ + 2 × 0.275″ = 5.525″.
Neighboring sizes (CS 0.275″ series)
| Dash | ID | OD | ID mm | vs -429 |
|---|---|---|---|---|
| -427 | 4.725″ | 5.275″ | 120.01 | ID −0.250″ |
| -428 | 4.850″ | 5.400″ | 123.19 | ID −0.125″ |
| -429 | 4.975″ | 5.525″ | 126.36 | — |
| -430 | 5.100″ | 5.650″ | 129.54 | ID +0.125″ |
| -431 | 5.225″ | 5.775″ | 132.71 | ID +0.250″ |
Same ID, other cross-sections
- AS568-353 — same 4.975″ ID with a 0.210″ cross-section (OD 5.395″)