AS568-334 O-Ring

Inside diameter 2.600″
Cross-section 0.210″
Outside diameter 3.020″
Metric (ID × CS) 66.04 × 5.33 mm

OD is derived: ID + 2 × CS = 2.600″ + 2 × 0.210″ = 3.020″.

Neighboring sizes (CS 0.210″ series)

Dash ID OD ID mm vs -334
-332 2.350″ 2.770″ 59.69 ID −0.250″
-333 2.475″ 2.895″ 62.87 ID −0.125″
-334 2.600″ 3.020″ 66.04
-335 2.725″ 3.145″ 69.22 ID +0.125″
-336 2.850″ 3.270″ 72.39 ID +0.250″
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.