MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert. Designed for harsh environments, these connectors are fully sealed and capable of operating in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front wall, rear wall, and jam nut receptacles, they ensure versatile installation. The connectors, compliant with military specification MIL-DTL-38999 I, come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Constructed with high-strength aluminum shells and offering a choice of plating options such as electroless nickel and cadmium finishes, they guarantee durability and reliable performance. Suitable for applications requiring environmental resistance, these connectors are a dependable choice for demanding scenarios.