Special Features:

Engraved lens reads unit/sys; major components: lamp retainer 1, rfi shield 1, blue lamp filters 2, engraved lens 1, actuator post 1

Properties:

Two or more different types of items having a common mounting or mounted on each other which together forms a portion of a switch but which in itself is not a complete functioning item and cannot be assigned a more definite item name. See also switch section, rotary and contact assembly, electrical.