AS568-365 O-Ring

Inside diameter 6.975″
Cross-section 0.210″
Outside diameter 7.395″
Metric (ID × CS) 177.16 × 5.33 mm

OD is derived: ID + 2 × CS = 6.975″ + 2 × 0.210″ = 7.395″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -365
-363 6.475″ 6.895″ 164.46 ID −0.500″
-364 6.725″ 7.145″ 170.81 ID −0.250″
-365 6.975″ 7.395″ 177.16
-366 7.225″ 7.645″ 183.51 ID +0.250″
-367 7.475″ 7.895″ 189.86 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.