The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Whether for front or rear wall mount or jam nut receptacles, these connectors are ideal for military and aerospace applications, ensuring durability and conductivity with their gold-plated removable crimp contacts. With a mating type of bayonet and shell style of straight plug, they provide efficient and reliable electrical connections for critical systems.