This SAE Standard specifies the dimensional requirements necessary for the mounting and interchangeability of four types of fuel injectors in diesel engines. Two of the types specified are flats-located injectors. The location and dimensions of the fuel inlet, leak-off connections and type of attachment are not defined since they may vary according to the particular application.
SAE J265-2002 Referenced Document
ISO 3539:1975 Road vehicles; Injection nozzle holder with body, types 8 and 10, and injection nozzle holder with fixing flats, types 9 and 11