The Kramp 612445SPECIAL is a genuine NBR90 U-Seal, expertly engineered for reliable sealing in demanding hydraulic and pneumatic applications. This high-performance seal features an inner diameter of 40mm, an outer diameter of 52mm, and a height of 6mm, effectively preventing fluid and gas leakage. Constructed from durable NBR90 material, it offers superior resistance to oils, fuels, and various chemicals. Designed to operate efficiently within a wide temperature range of -30°C to +100°C, it can withstand system pressures up to 250 bar, ensuring robust performance in industrial environments.