The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. These connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. With front and rear wall mount options, as well as jam nut receptacles, they provide secure and reliable connections. Utilizing M39029 rear release crimp contacts, they ensure efficient and durable performance. Ideal for military and industrial use, these connectors offer exceptional conductivity and ingress protection, making them suitable for demanding environments.