AS568-247 O-Ring

Inside diameter 4.609″
Cross-section 0.139″
Outside diameter 4.887″
Metric (ID × CS) 117.07 × 3.53 mm

OD is derived: ID + 2 × CS = 4.609″ + 2 × 0.139″ = 4.887″.

Neighboring sizes (CS 0.139″ series)

Dash ID OD ID mm vs -247
-245 4.359″ 4.637″ 110.72 ID −0.250″
-246 4.484″ 4.762″ 113.89 ID −0.125″
-247 4.609″ 4.887″ 117.07
-248 4.734″ 5.012″ 120.24 ID +0.125″
-249 4.859″ 5.137″ 123.42 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.