AS568-379 O-Ring

Inside diameter 10.975″
Cross-section 0.210″
Outside diameter 11.395″
Metric (ID × CS) 278.76 × 5.33 mm

OD is derived: ID + 2 × CS = 10.975″ + 2 × 0.210″ = 11.395″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -379
-377 9.975″ 10.395″ 253.36 ID −1.000″
-378 10.475″ 10.895″ 266.06 ID −0.500″
-379 10.975″ 11.395″ 278.76
-380 11.475″ 11.895″ 291.46 ID +0.500″
-381 11.975″ 12.395″ 304.16 ID +1.000″

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.