MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert, designed for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, these connectors meet stringent military specifications for durability. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Constructed with high-strength aluminum shells and offered in various plating options, including RoHS compliant finishes, they ensure long-lasting performance in a wide range of applications. With a wide operating temperature range from -65°C to 200°C, these connectors are ideal for demanding environments where reliability is paramount.