A114019 is a universal seal plug designed for Size 4 connector contacts manufactured by Amphenol Sine Systems. This thermoplastic component is engineered to seal and protect unused contact positions in industrial connectors, preventing contamination and ensuring connector integrity. The plug features a red color for easy identification and is constructed from durable thermoplastic material suitable for harsh industrial environments. It is commonly used in precision connector assemblies to maintain environmental sealing and mechanical reliability in applications ranging from aerospace to industrial automation systems.