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 of -65°C to 200°C. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, these connectors offer robust RFI grounding. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity in aerospace and military applications. Constructed with high-strength aluminum shells and offering multiple plating options, such as cadmium and nickel, these connectors are built for durability. Their RoHS-certified finishes cater to environmental regulations, making them a secure choice for critical systems.