Hamilton, O-ring 5mL head, PN: 254260

The O-ring for 5mL head (Part: 254260) is designed to keep the tips stable during liquid transfers, ensuring both accuracy and reliability. It enables a smoother, more controlled attachment and detachment of the pipette tips, reducing the risk of mishaps or contamination.
Tip alignment is critical for positioning the orifice of the tip at the proper height of the liquid for accurate pipetting as well as for locating the tip precisely within the horizontal plane of the pipetting surface. The annular groove design of the Hamilton tip allows exact seating of the locking O-ring within the tip for proper vertical and horizontal alignment. The system requires no vertical force for tip attachment or tip ejection, thus eliminating mechanical stress and improving overall system reliability along with pipetting speed and dexterity.