MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts. These environmentally sealed connectors offer a wide operating temperature range from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, they ensure durability and performance. Ideal for military and industrial applications, these connectors meet stringent standards for quality and reliability.