AS568-449 O-Ring
Inside diameter 9.975″
Cross-section 0.275″
Outside diameter 10.525″
Metric (ID × CS) 253.36 × 6.99 mm
OD is derived: ID + 2 × CS = 9.975″ + 2 × 0.275″ = 10.525″.
Neighboring sizes (CS 0.275″ series)
| Dash | ID | OD | ID mm | vs -449 |
|---|---|---|---|---|
| -447 | 8.975″ | 9.525″ | 227.96 | ID −1.000″ |
| -448 | 9.475″ | 10.025″ | 240.66 | ID −0.500″ |
| -449 | 9.975″ | 10.525″ | 253.36 | — |
| -450 | 10.475″ | 11.025″ | 266.06 | ID +0.500″ |
| -451 | 10.975″ | 11.525″ | 278.76 | ID +1.000″ |
Same ID, other cross-sections
- AS568-377 — same 9.975″ ID with a 0.210″ cross-section (OD 10.395″)