The Series FS0318 ORFS Nuts, made from durable carbon steel and manufactured according to SAE 520110 standards, are essential components for securing O-Ring Face Seal (ORFS) connections in hydraulic systems. These nuts are designed to be used with ORFS fittings to create a leak-tight seal, ensuring reliable and efficient fluid flow in high-pressure applications. The carbon steel construction provides strength and longevity, making them suitable for demanding industrial environments. These ORFS nuts are typically used to secure the O-ring to the flat face of the fitting, helping to prevent leaks caused by pressure or vibration, and ensuring the integrity of the system.