AS568-466 O-Ring

Inside diameter 18.455″
Cross-section 0.275″
Outside diameter 19.005″
Metric (ID × CS) 468.76 × 6.99 mm

OD is derived: ID + 2 × CS = 18.455″ + 2 × 0.275″ = 19.005″.

Neighboring sizes (CS 0.275″ series)

Dash ID OD ID mm vs -466
-464 17.455″ 18.005″ 443.36 ID −1.000″
-465 17.955″ 18.505″ 456.06 ID −0.500″
-466 18.455″ 19.005″ 468.76
-467 18.955″ 19.505″ 481.46 ID +0.500″
-468 19.455″ 20.005″ 494.16 ID +1.000″
Data provenance. SAE AS568, Aerospace Size Standard for O-rings (SAE International). Nominal dimensions per AS568; size tolerances vary by dash number and are not yet cataloged. Groove/gland design depends on the application — consult a gland design reference. See all data sources.