AS568-428 O-Ring
Inside diameter 4.850″
Cross-section 0.275″
Outside diameter 5.400″
Metric (ID × CS) 123.19 × 6.99 mm
OD is derived: ID + 2 × CS = 4.850″ + 2 × 0.275″ = 5.400″.
Neighboring sizes (CS 0.275″ series)
| Dash | ID | OD | ID mm | vs -428 |
|---|---|---|---|---|
| -426 | 4.600″ | 5.150″ | 116.84 | ID −0.250″ |
| -427 | 4.725″ | 5.275″ | 120.01 | ID −0.125″ |
| -428 | 4.850″ | 5.400″ | 123.19 | — |
| -429 | 4.975″ | 5.525″ | 126.36 | ID +0.125″ |
| -430 | 5.100″ | 5.650″ | 129.54 | ID +0.250″ |
Same ID, other cross-sections
- AS568-352 — same 4.850″ ID with a 0.210″ cross-section (OD 5.270″)