The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable performance. Constructed with high-strength aluminum shells and offering a range of plating options, including RoHS-certified finishes, these connectors ensure durability and compatibility. Designed for military specifications, they provide secure mating with bayonet coupling and come in jam nut mounting, front wall mount, and rear wall mount configurations. With gold-plated removable crimp contacts and socket contact style, they guarantee efficient signal transmission. Suitable for both wall and jam nut mounting receptacles and plugs, these connectors are essential for environment-resistant applications.