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 from -65°C to 200°C. Available in various configurations including front and rear wall mount receptacles, as well as jam nut receptacles and RFI grounding plugs, these connectors offer versatility in connectivity solutions. Compliant with military specifications, they come in 9 shell sizes and 52 insert arrangements, using M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and offered in a range of plating options such as cadmium and nickel, these connectors ensure reliable performance. Suitable for applications requiring RoHS compliance, they are ideal for demanding environments that call for durable and secure electrical connections.