A method for forming an embodiment of a fluid nozzle assembly (10) includes removing two cores (20, 22) in opposed directions from a die set having a mold cavity configured to be a negative replica of the fluid nozzle assembly. The cavity includes the two cores, with one core configured to be a negative replica of : a fluid connector receiving bore (24) ; an inlet region (26) of a nozzle; and a pass-through conduit (30), each m fluid communication with the fluid connector receiving bore. The other core is configured to be a negative replica of an outlet region (28) of a nozzle m fluid communication with the inlet region. Removing the cores forms the nozzle assembly after molten polymeric material injected into the mold cavity has solidified. Removing leaves substantially no flash: at an area where the inlet region and the outlet region meet; and at an end region (36) of the pass- through conduit distal to the receiving bore.
