Abstract: A tattoo needle bar holder and needle bar assembly is fashioned so as to be economical to manufacture and therefore readily disposable in order to promote sanitary conditions in the tattoo industry. The needle bar holder is preferably formed from a plastic material in order to render it incapable of withstanding sterilization processes involving very high pressure and temperatures, which would render the holder incapable of further use. The material is preferably also stained by the inks normally used in the industry, thereby serving to alert persons of any prior use. The caps which seal the assembly prior to use are preferably formed to require the breakage of a frangible portion upon removal in order to prevent the reinstallation of the caps. The needle bar assembly is composed of several relatively simple components for ease of manufacture, and contains an eye and plastic or elastomer grommet at the upper end of the needle bar for precise attachment to the tattooing mechanism.