MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in an insert that is environmentally sealed for reliable performance. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors feature thin walls and restricted lengths, meeting MIL-DTL-38999 II standards for durability. With options for straight, RFI grounding, and standard plugs, along with a variety of plating finishes like gold, electroless nickel, and cadmium olive drab, these connectors offer versatility in connectivity solutions. The use of M39029 rear release crimp contacts ensures secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Made with aluminum shells, these connectors are robust and reliable, with RoHS compliant finishes available. Suitable for military and industrial applications requiring high-performance connectivity in harsh environments.