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. This connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes. Constructed with high strength aluminum shells, these connectors offer a range of plating options, including cadmium-free finishes. Meeting MIL-DTL-38999 I military specifications, they provide reliable connectivity for demanding applications.