AS568-436 O-Ring

Inside diameter 5.850″
Cross-section 0.275″
Outside diameter 6.400″
Metric (ID × CS) 148.59 × 6.99 mm

OD is derived: ID + 2 × CS = 5.850″ + 2 × 0.275″ = 6.400″.

Neighboring sizes (CS 0.275″ series)

Dash ID OD ID mm vs -436
-434 5.600″ 6.150″ 142.24 ID −0.250″
-435 5.725″ 6.275″ 145.41 ID −0.125″
-436 5.850″ 6.400″ 148.59
-437 5.975″ 6.525″ 151.76 ID +0.125″
-438 6.225″ 6.775″ 158.11 ID +0.375″

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.