MIL-DTL-38999 Series I connectors feature up to 128 contacts within an environmentally sealed insert, designed for durability in harsh conditions with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer versatility for different applications. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, they ensure reliable performance in demanding environments. With options for front and rear wall mount, as well as jam nut receptacles, and RFI grounding plugs, they provide flexibility in installation. Utilizing M39029 rear release crimp contacts, these connectors are ideal for military and aerospace applications, meeting MIL-DTL-38999 I specifications.