MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range from -65 °C to 200 °C, they are suitable for demanding applications. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for secure connections. Made with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes for RoHS compliance. Trusted for military and aerospace use, these connectors ensure reliable performance in challenging conditions.