MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts within an environmentally sealed insert. With an impressive operating temperature range of -65°C to 200°C, they offer reliability in extreme conditions. Available in various mounting styles like front wall mount and jam nut receptacles, these connectors ensure versatile installation. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they guarantee durability and performance. The connectors, incorporating M39029 rear release crimp contacts, provide efficient connectivity with sizes ranging from 22D to 12. With a focus on military specification MIL-DTL-38999 II, these circular receptacles are ideal for applications requiring high performance and resilience.