DPXNA (non-environmental, Type IV) and DPXNE (environmental, Types II and III) rack and panel connectors are designed to meet or exceed the requirements of MIL-C-81659, Revision B. They are used in military and aerospace applications and computer periphery equipment requirements, and are designed to operate in temperatures ranging from - 65°C to + 125°C. DPXNA/NE connectors are available in single, 2, 3, and 4 gang configurations with a total of 12 contact arrangements accommodation contact sizes 12, 16, 20 and 22, and combination standard and coaxial contacts. Contact retention of these crimp snap-in contacts is provided by the LITTLE CAESAR rear release contact retention assembly. Environmental sealing is accomplished by wire sealing grommets and interfacial seals.