MIL-DTL-38999/24 - Connectors, Electrical, Circular, Receptacle, Threaded, Jam Nut Mounting, Removable Crimp Contacts, Series III, featuring 61 gold-plated contacts for reliable conductivity in harsh environments. With a wide operating temperature range from -65 °C to 200 °C, these connectors are designed for rugged applications. The aluminum shell with Electroless Nickel finish provides enhanced durability and environmental resistance, meeting service class I requirements. Engineered for high reliability, they offer a mating life of 500 cycles. This RoHS-compliant product, acronym D3899924FJ61SC, is ideal for military and aerospace applications, ensuring secure and efficient electrical connections in demanding conditions.