AS568-444 O-Ring
Inside diameter 7.725″
Cross-section 0.275″
Outside diameter 8.275″
Metric (ID × CS) 196.21 × 6.99 mm
OD is derived: ID + 2 × CS = 7.725″ + 2 × 0.275″ = 8.275″.
Neighboring sizes (CS 0.275″ series)
| Dash | ID | OD | ID mm | vs -444 |
|---|---|---|---|---|
| -442 | 7.225″ | 7.775″ | 183.51 | ID −0.500″ |
| -443 | 7.475″ | 8.025″ | 189.86 | ID −0.250″ |
| -444 | 7.725″ | 8.275″ | 196.21 | — |
| -445 | 7.975″ | 8.525″ | 202.56 | ID +0.250″ |
| -446 | 8.475″ | 9.025″ | 215.26 | ID +0.750″ |
Same ID, other cross-sections
- AS568-368 — same 7.725″ ID with a 0.210″ cross-section (OD 8.145″)