MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, perfect for demanding environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections in various applications. These connectors, compliant with military specification MIL-DTL-38999 I, are crafted for durability, with a wide operating temperature range of -65°C to 200°C. Available in 9 shell sizes and 52 insert arrangements, they accommodate diverse needs, supported by M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. The high strength aluminum shells, with options for different plating finishes including RoHS certified cadmium-free coatings, guarantee reliability in harsh conditions. Ideal for use in aerospace, defense, and industrial sectors, these connectors ensure seamless electrical transmission and signal integrity, meeting stringent quality standards.