The 983-6SE22-55PN is a sealed plug connector from the DEUTSCH 983 Series engineered for extreme reliability in harsh aerospace, defense, and marine environments. This connector features 55 contacts of size 20, providing high-density signal transmission capabilities in a compact form factor. The plug shell is constructed from stainless steel with a 260°C cyclic temperature rating, ensuring superior performance across demanding operational conditions. The connector incorporates sealed design principles to protect against environmental contamination and moisture ingress, critical for mission-critical aerospace and military applications. The SE shell type designation indicates this is a sealed plug variant compatible with hermetic receptacles, making it ideal for applications requiring both high contact density and environmental sealing in extreme conditions.