Souriau Mil-Spec Circular Connectors 38999 Series I, II, and III, and 26482 Series I and II offer a complete range of standard and derived circular connectors for harsh environments. Suitable for military, railway, and extreme industrial applications, these connectors are based on the MIL-DTL38999 and MIL-DTL-26482 standards. The product lineup includes micro, QPL, hermetics, high-density, and high-speed versions.