MIL-DTL-38999 III (D38999) harsh environment connectors offer reliable connectivity in demanding settings. Available in various configurations including wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, they provide versatility for different applications. With 9 shell sizes and 54 insert arrangements, featuring M39029 contacts in multiple sizes, these connectors ensure compatibility with a wide range of systems. Constructed from durable materials such as aluminum, stainless steel, and lightweight composite, they are designed to withstand tough conditions. Offering a choice of plating options including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel, these connectors cater to diverse needs. Additionally, with RoHS-compliant and cadmium-free finishes available, as well as Boeing BACC-approved designs, they meet stringent industry standards. Featuring a straight plug design with removable crimp contacts, these Series III connectors are ideal for military and aerospace applications, providing secure and efficient electrical connections with gold-plated contacts. With a wide operating temperature range from -65°C to 200°C, they ensure reliable performance in extreme environments. Suitable for use in various industries, these connectors offer enhanced EMI/RFI shielding and environmental resistance, making them a reliable choice for critical systems.