The MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, these connectors offer versatility with 52 insert arrangements. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, they ensure secure and reliable connections. Constructed with high strength aluminum shells and offered in different plating options such as electroless nickel and cadmium finishes, these connectors meet stringent military specifications. Suitable for applications requiring RoHS compliance, they provide durable performance with conductivity and environmental resistance.