MIL-DTL-38999 Series I connectors are engineered for rugged applications, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh environments. Available in various shell sizes and insert arrangements, they offer versatility in design. Constructed with high strength aluminum shells and offered in different plating options, including RoHS certified finishes, they ensure reliable performance. The connectors come in wall mount and jam nut receptacle options, utilizing M39029 rear release crimp contacts. With a bayonet coupling mechanism and gold contact plating, they guarantee secure and efficient connectivity. Suitable for military and industrial use, these connectors meet MIL-DTL-38999 I specifications, delivering durability and longevity in demanding conditions.