The MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, housed in a rugged, environmentally sealed insert. Designed for harsh environments, these connectors feature a wide operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure reliable performance. With options for front wall mount, rear wall mount, and jam nut receptacles, they suit a range of installation needs. The bayonet coupling mechanism facilitates easy and secure mating, while the gold-plated contacts ensure optimal conductivity. Ideal for military and industrial applications, these connectors meet the stringent requirements of MIL-DTL-38999 specifications.