MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in an environmentally sealed insert. Operating between -65 °C and 200 °C, these connectors offer a reliable solution for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. With options for straight, RFI grounding, and standard plugs, including a 90-degree cable clamp, these connectors provide flexibility in design. Featuring M39029 rear release crimp contacts in different sizes, they ensure secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors prioritize performance and compliance. With a service rating of I and a mating type of bayonet, they are suitable for critical operations. The MIL-DTL-38999 II connectors, specifically the MS27474 series, guarantee durability and functionality in complex electrical systems.