MIL-DTL-38999 Series I connectors feature up to 128 contacts within an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front and rear wall mount options, as well as jam nut receptacles, these connectors ensure secure connections. Utilizing M39029 rear release crimp contacts, they come in various shell sizes with plating options such as cadmium and nickel. With a durable aluminum shell construction, they guarantee reliability in demanding applications. RoHS compliant finishes are available, making them suitable for a wide range of industrial and military uses.