AS568-375 O-Ring

Inside diameter 9.475″
Cross-section 0.210″
Outside diameter 9.895″
Metric (ID × CS) 240.66 × 5.33 mm

OD is derived: ID + 2 × CS = 9.475″ + 2 × 0.210″ = 9.895″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -375
-373 8.975″ 9.395″ 227.96 ID −0.500″
-374 9.225″ 9.645″ 234.31 ID −0.250″
-375 9.475″ 9.895″ 240.66
-376 9.725″ 10.145″ 247.01 ID +0.250″
-377 9.975″ 10.395″ 253.36 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.