AS568-363 O-Ring

Inside diameter 6.475″
Cross-section 0.210″
Outside diameter 6.895″
Metric (ID × CS) 164.46 × 5.33 mm

OD is derived: ID + 2 × CS = 6.475″ + 2 × 0.210″ = 6.895″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -363
-361 5.975″ 6.395″ 151.76 ID −0.500″
-362 6.225″ 6.645″ 158.11 ID −0.250″
-363 6.475″ 6.895″ 164.46
-364 6.725″ 7.145″ 170.81 ID +0.250″
-365 6.975″ 7.395″ 177.16 ID +0.500″

Same ID, other cross-sections

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.