The Z140X148.6X5/7N with Wiipers Z, NBR, Øout: 148.6mm, -30÷100°C, Shore hardness: 70 is a circular sealing ring manufactured by ORING. It is used to stop gases, fluids, dust, and other contaminants from entering an enclosure. It is made from nitrile rubber (NBR), has a temperature range of -30°C to 100°C, and a shore hardness of 70. Wiipers Z, a patented interlocking technology, is featured on the sealing ring to ensure a tight seal that cannot be loosened by compression and vibration. The outside diameter of the sealing ring is 148.6 mm.