15.60X1.78 is listed in DICSA's technical catalogue under Standard series fittings / ORFS Fittings / O´rings for ORFS / NBR.
Hose fittings and ferrules must be selected as an assembly system: match the hose construction, end connection and documented assembly specification.
Use the catalogue drawing and exact part reference to check connection geometry, hose or tube compatibility, and installation requirements.
