MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, they ensure reliable performance. Utilizing M39029 rear release crimp contacts, these connectors are suitable for demanding applications that require durability and environmental sealing.