MIL-DTL-38999 Series I connectors feature a rugged design with up to 128 contacts, offering reliable connectivity in harsh environments. These connectors, with an operating temperature range of -65 °C to 200 °C, are environmentally sealed for optimal performance. Available in various shell sizes and insert arrangements, they are crafted from high-strength aluminum with options for different plating finishes, including RoHS-certified alternatives. Suitable for military and industrial applications, these connectors come in wall mount, jam nut, and RFI grounding plug configurations, accommodating diverse installation needs. Utilizing M39029 rear release crimp contacts, they ensure secure connections with male pin contact style and bayonet mating type. With a service rating of II and a service class of E, they guarantee durability and conductivity, making them ideal for demanding settings requiring environment-resistant solutions.