O-ring for spindle ф6mm x 1.9mm 5 pieces

Set of 5 O-rings for spindle size f6mm x 1.9mm. O-rings are made of rubber. They ensure the reliable operation of the spindle, which is in a rotating mechanical unit in a machine or device. Regarding the devices working in the plumbing system, the spindle is an integral part of the construction of instantaneous water heaters.