THE PRESENT APPLICATION RELATES TO DRUG DELIVERY DEVICE (5) AND A AND METHOD OF MANUFACTURING A DRUG DELIVERY DEVICE WITH A HOUSING (10) HAVING A PROXIMAL END AND A DISTAL END, A CARTRIDGE (15) ADAPTED TO ACCOMMODATE A DRUG, A CARTRIDGE RETAINING MEMBER (45) ADAPTED TO RETAIN THE CARTRIDGE, THE CARTRIDGE RETAINING MEMBER BEING SECURED TO THE HOUSING, AND A SPRING WASHER (50) BEING ARRANGED WITHIN THE HOUSING SO AS TO EXERTING A FORCE ON THE CARTRIDGE AND SECURING THE CARTRIDGE AGAINST MOVEMENT WITH RESPECT TO THE CARTRIDGE RETAINING MEMBER AND AGAINST MOVEMENT WITH RESPECT TO THE HOUSING.