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 mounting options including front and rear wall mount, as well as jam nut receptacles, they ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, with options for RoHS certified finishes. The high strength aluminum shells are plated with choices like electroless nickel and cadmium-free coatings, guaranteeing durability and performance. Suitable for military and industrial applications, these connectors offer reliable connectivity in demanding conditions.