AS568-133 O-Ring

Inside diameter 1.799″
Cross-section 0.103″
Outside diameter 2.005″
Metric (ID × CS) 45.69 × 2.62 mm

OD is derived: ID + 2 × CS = 1.799″ + 2 × 0.103″ = 2.005″.

Neighboring sizes (CS 0.103″ series)

Dash ID OD ID mm vs -133
-131 1.674″ 1.880″ 42.52 ID −0.125″
-132 1.737″ 1.943″ 44.12 ID −0.062″
-133 1.799″ 2.005″ 45.69
-134 1.862″ 2.068″ 47.29 ID +0.063″
-135 1.925″ 2.131″ 48.89 ID +0.126″
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.