MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating efficiently between -65 °C and 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Offering versatility, they are available as straight, RFI grounding, and standard plugs with a 90-degree cable clamp. With 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells, they come with plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, some being RoHS certified. Suitable for military applications, these connectors ensure reliable performance with a contact mating life of 500 cycles and a service rating of M.
