MIL-DTL-38999 Series I connectors, also known as MS27505, offer ruggedized performance for harsh environments. With up to 128 contacts in a sealed insert, they ensure reliable connectivity in extreme conditions. Featuring various mounting options like front and rear wall mount, as well as jam nut receptacles, these connectors are versatile for different applications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in sizes 22D, 22M, 22, 20, 16, and 8. The high-strength aluminum shells come in multiple plating options including cadmium and electroless nickel, catering to diverse needs. Designed for military specifications, these connectors are ideal for demanding environments where durability and performance are paramount.