MIL-DTL-38999 Series I connectors offer rugged durability for demanding environments, featuring up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Offering wall mount and jam nut receptacles with bayonet coupling, these connectors provide reliable electrical connectivity in military and industrial applications.