MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, these connectors offer versatility with various mounting options like front and rear wall mount, jam nut, and more. Available in 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 and offering plating options including cadmium finishes, they ensure durability. With a contact gender of female and socket contact style, these connectors are reliable for 500 mating cycles, meeting environmental resistance standards for Box and Through Bulkhead Mounting Receptacle Types.
