1394133-1 is a cavity plug designed for HDSCS and LEAVYSEAL connector series, specifically engineered for 1.5K contact size applications. This sealing component accommodates wire gauges up to 3.6 mm, providing environmental sealing and protection for unused cavities within the connector housing. The plug is manufactured in natural color, ensuring compatibility with standard connector configurations. Cavity plugs are essential accessories in sealed connector systems, preventing moisture ingress, contamination, and maintaining the integrity of the connector assembly in harsh industrial and transportation environments.