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 and RFI grounding plugs. Constructed with high-strength aluminum shells and offering RoHS-certified finishes, they ensure reliable performance in demanding applications, with contact options including M39029 rear release crimp contacts. Suitable for military and industrial use, these connectors provide secure electrical connections in challenging conditions.