MIL-DTL-38999 Series I connectors offer a rugged solution for harsh environments, featuring up to 128 contacts in an insert with front and rear wall mount options and jam nut receptacles. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Constructed with high strength aluminum shells and available in various plating options, including RoHS certified finishes, they ensure reliable performance. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. Their bayonet coupling and conductive socket contact style make them ideal for military and industrial use, providing 500 mating cycles and environment resistance. With a service class of E and shell size 19, these connectors meet stringent requirements for durability and performance.