MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various mounting styles including front and rear wall mount, as well as jam nut receptacles, they ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts in multiple sizes, these connectors offer versatility. Constructed with high strength aluminum shells and a range of plating options, they provide durability and reliability. Suitable for military and industrial applications requiring rugged performance, these connectors meet RoHS compliance standards.