AS568-011 O-Ring

Inside diameter 0.301″
Cross-section 0.070″
Outside diameter 0.441″
Metric (ID × CS) 7.65 × 1.78 mm

OD is derived: ID + 2 × CS = 0.301″ + 2 × 0.070″ = 0.441″.

Neighboring sizes (CS 0.070″ series)

Dash ID OD ID mm vs -011
-009 0.208″ 0.348″ 5.28 ID −0.093″
-010 0.239″ 0.379″ 6.07 ID −0.062″
-011 0.301″ 0.441″ 7.65
-012 0.364″ 0.504″ 9.25 ID +0.063″
-013 0.426″ 0.566″ 10.82 ID +0.125″
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.