AS568-236 O-Ring

Inside diameter 3.234″
Cross-section 0.139″
Outside diameter 3.512″
Metric (ID × CS) 82.14 × 3.53 mm

OD is derived: ID + 2 × CS = 3.234″ + 2 × 0.139″ = 3.512″.

Neighboring sizes (CS 0.139″ series)

Dash ID OD ID mm vs -236
-234 2.984″ 3.262″ 75.79 ID −0.250″
-235 3.109″ 3.387″ 78.97 ID −0.125″
-236 3.234″ 3.512″ 82.14
-237 3.359″ 3.637″ 85.32 ID +0.125″
-238 3.484″ 3.762″ 88.49 ID +0.250″
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.