The MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments with up to 128 contacts enclosed in a sealed insert. Designed for durability, these connectors feature front and rear wall mount options, as well as jam nut receptacles. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come with a choice of plating options, including cadmium-free finishes. These connectors, meeting military specification MIL-DTL-38999 I, are ideal for aerospace, defense, and industrial use.