AS568-284 O-Ring
Inside diameter 17.955″
Cross-section 0.139″
Outside diameter 18.233″
Metric (ID × CS) 456.06 × 3.53 mm
OD is derived: ID + 2 × CS = 17.955″ + 2 × 0.139″ = 18.233″.
Neighboring sizes (CS 0.139″ series)
| Dash | ID | OD | ID mm | vs -284 |
|---|---|---|---|---|
| -282 | 15.955″ | 16.233″ | 405.26 | ID −2.000″ |
| -283 | 16.955″ | 17.233″ | 430.66 | ID −1.000″ |
| -284 | 17.955″ | 18.233″ | 456.06 | — |
Same ID, other cross-sections
- AS568-387 — same 17.955″ ID with a 0.210″ cross-section (OD 18.375″)
- AS568-465 — same 17.955″ ID with a 0.275″ cross-section (OD 18.505″)