AS568-349 O-Ring

Inside diameter 4.475″
Cross-section 0.210″
Outside diameter 4.895″
Metric (ID × CS) 113.66 × 5.33 mm

OD is derived: ID + 2 × CS = 4.475″ + 2 × 0.210″ = 4.895″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -349
-347 4.225″ 4.645″ 107.31 ID −0.250″
-348 4.350″ 4.770″ 110.49 ID −0.125″
-349 4.475″ 4.895″ 113.66
-350 4.600″ 5.020″ 116.84 ID +0.125″
-351 4.725″ 5.145″ 120.01 ID +0.250″

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.