MIL-DTL-38999 Series I connectors feature up to 128 contacts in an 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 front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Constructed with high-strength aluminum shells, these connectors come with different plating options, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable performance with gold contact plating and a mating type of bayonet. Suitable for military and aerospace applications, these connectors guarantee conductivity and environment resistance, making them ideal for demanding scenarios.