AS568-249 O-Ring
Inside diameter 4.859″
Cross-section 0.139″
Outside diameter 5.137″
Metric (ID × CS) 123.42 × 3.53 mm
OD is derived: ID + 2 × CS = 4.859″ + 2 × 0.139″ = 5.137″.
Neighboring sizes (CS 0.139″ series)
| Dash | ID | OD | ID mm | vs -249 |
|---|---|---|---|---|
| -247 | 4.609″ | 4.887″ | 117.07 | ID −0.250″ |
| -248 | 4.734″ | 5.012″ | 120.24 | ID −0.125″ |
| -249 | 4.859″ | 5.137″ | 123.42 | — |
| -250 | 4.984″ | 5.262″ | 126.59 | ID +0.125″ |
| -251 | 5.109″ | 5.387″ | 129.77 | ID +0.250″ |