The MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts in an insert. Featuring front and rear wall mount options, as well as jam nut receptacles, they offer versatile connectivity solutions. These connectors are environmentally sealed and operate efficiently in temperatures ranging from -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes for RoHS compliance. With a mating type of bayonet coupling and contact plating in gold, these connectors guarantee reliable performance in demanding applications.