MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert, ensuring reliable operation in harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, these connectors are designed for versatility. Utilizing M39029 rear release crimp contacts, they come in 52 insert arrangements, suitable for a wide range of applications. With a rugged construction and various plating options, including cadmium-free finishes, they provide durability and environmental sealing. Operating between -65°C and 200°C, these connectors are ideal for demanding military and aerospace environments.