The OB04 O-Ring Boss Seal -04 is a precision sealing O-ring designed for ORB (O-Ring Boss) hydraulic fittings, helping create a secure, leak-resistant seal in high-pressure fluid systems. Engineered to fit -04 ORB ports, this seal compresses between the fitting and port face to prevent hydraulic fluid leaks while blocking dirt and contaminants from entering the system. Manufactured from durable elastomer material suitable for hydraulic applications, it provides dependable sealing performance in agricultural, industrial, and mechanical equipment. It’s a small component, but in hydraulic systems, the smallest seal often carries the biggest responsibility—keeping fluid where it belongs.
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