The D38999/24WC35SB L/C part of TE Connectivity is a Hybrid Connector with a shell size 24 and a total of 35 contacts. It has a Round MIL Spec Shell Size of 25S, a single row keyway, and a threaded coupling mechanism. It features an environment for harsh environments, an extra long mating cycle, and is versatile enough for multiple applications. The connector is designed for applications in defense, avionics, and military. It offers reliable connections in extreme environmental conditions. It is designed to meet MIL-DTL-38999 specifications.