The Fox O-ring seal (-009) is specified at .070 cross-section by .208 inch inner diameter in N-70 static compound. This small, standard O-ring is intended for static sealing applications that call for the -009 size and N-70 material properties, commonly used where compact sealing elements are required to prevent leaks in fittings or assemblies accepting that ID and CS.
Fox O-Ring Seal (-009) .070 C.S. X .208 ID Standard N-70 Static