MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors are built for reliability. Available in various configurations including front and rear wall mount receptacles, as well as jam nut receptacles, they meet stringent military specifications for durability. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide versatility for diverse applications. With a mating type of bayonet and a straight plug shell style, they are suitable for use in demanding environments requiring resistance to environmental factors.