MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, featuring environmentally sealed inserts for reliable performance in harsh conditions. Designed for a wide operating temperature range of -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and plated with options such as gold, electroless nickel, and cadmium-free finishes, they ensure durability and conductivity. The bayonet coupling mechanism and keyway polarization provide easy and secure mating, with a service rating of Class I for dependable use in demanding environments.
