MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed for environmental protection. With an operating temperature range of -65°C to 200°C, these connectors are suitable for demanding applications. Available in various configurations such as front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. The high-strength aluminum shells come in 9 sizes with 52 insert arrangements, accommodating diverse needs. Plating options include cadmium-free finishes, meeting RoHS certification standards. With a rugged construction and reliable performance, MIL-DTL-38999 Series I connectors are ideal for military and industrial use.