MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with front and rear wall mount options, as well as jam nut and box mount receptacles. These connectors, meeting military specification MIL-DTL-38999 II, are sealed for environmental protection and can operate in temperatures ranging from -65 °C to 200 °C. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they ensure durability and reliability. With a bayonet coupling design and gold contact plating, they provide secure connections in demanding applications. The connectors, both receptacle and plug types, are suited for wall and jam nut mounting, with a service rating of M for environmental resistance. Meeting stringent quality standards, they offer 500 mating cycles and conductive performance, making them ideal for military, aerospace, and industrial use.
