MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for superior connectivity. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they offer versatility in installation. The high-strength aluminum shells are environmentally sealed and come in different plating options, including cadmium-free finishes for RoHS compliance. Featuring front and rear wall mount options, as well as jam nut receptacles, these connectors ensure secure and reliable connections. The M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax) guarantee efficient signal transmission. Suitable for military and industrial use, MIL-DTL-38999 I connectors are rugged, durable, and highly conductive, with a mating life of 500 cycles. Trust in their performance for critical applications that demand precision and reliability.