The MIL-DTL-38999 Series II connectors are built for rugged environments, featuring up to 128 contacts in an environmentally sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles including front and rear wall mount, as well as jam nut and box mount receptacles, they provide flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Made of durable aluminum with plating options such as electroless nickel, they ensure longevity and performance. These connectors, meeting MIL-DTL-38999 II specifications, are ideal for applications demanding high durability and environmental resistance.