MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount options, as well as jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells, they come in RoHS compliant cadmium-free finishes such as electroless nickel and iridescent yellow cadmium. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity with gold-plated removable socket contacts. Meeting military specification MIL-DTL-38999 I, these connectors are ideal for demanding applications that require durability and performance in extreme conditions.