AS568-115 O-Ring

Inside diameter 0.674″
Cross-section 0.103″
Outside diameter 0.880″
Metric (ID × CS) 17.12 × 2.62 mm

OD is derived: ID + 2 × CS = 0.674″ + 2 × 0.103″ = 0.880″.

Neighboring sizes (CS 0.103″ series)

Dash ID OD ID mm vs -115
-113 0.549″ 0.755″ 13.94 ID −0.125″
-114 0.612″ 0.818″ 15.54 ID −0.062″
-115 0.674″ 0.880″ 17.12
-116 0.737″ 0.943″ 18.72 ID +0.063″
-117 0.799″ 1.005″ 20.29 ID +0.125″
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.