Description

The 6.35 × 1.78 mm O-ring is a standard metric sealing component manufactured according to ISO and DIN specifications. Designed to provide effective sealing against air, gas, oil, and fluid leakage, this O-ring is widely used in pneumatic systems, hydraulic assemblies, air rifles, valves, and industrial equipment. Available in multiple elastomer materials such as NBR, FKM (Viton), EPDM, and silicone, the seal offers durability, flexibility, and resistance to temperature and chemical exposure depending on material selection.