MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range from -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With 52 insert arrangements and using M39029 rear release crimp contacts, these connectors ensure reliable connectivity in aerospace and military applications. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide durability and performance. The straight plug design, with gold-plated removable crimp contacts, guarantees secure connections. Meeting MIL-DTL-38999 II standards, these connectors are essential for demanding environments.