MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, they ensure secure connections. Compliant with military specification MIL-DTL-38999 I, these circular connectors offer reliability with M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and offered in multiple plating options, such as electroless nickel and cadmium finishes, they cater to diverse application needs. With RoHS compliant versions available, these connectors meet environmental standards while guaranteeing durability and performance in demanding settings.