MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors offer reliable performance in demanding conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. Ideal for military and industrial applications, they provide durability and conductivity with a mating type of bayonet. With a contact gender of female and socket contact style, they are suitable for box and through bulkhead mounting receptacle types.