MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These thin-walled connectors come in various mounting options such as front wall, rear wall, jam nut, rear box, and front box (long grommet) receptacles, with straight, RFI grounding, and standard plugs available. Offering versatility, they come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells, these connectors feature multiple plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Meeting MIL-DTL-38999 II military specifications, they ensure reliable performance with gold-plated contacts, bayonet coupling, and a service rating of I for demanding applications in aerospace, defense, and industrial settings.
