MIL-DTL-38999 Series I connectors offer a reliable solution for harsh environments, 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 suitable for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come with a choice of plating options, including cadmium-free finishes. Offering Bayonet coupling and front/rear wall mount receptacles, these connectors meet MIL-DTL-38999 I military specifications for durability and performance in rugged conditions.