Special Features:

Insert screw thread 3, indicator parallax 1; indicator sand cast magesium alloy per qq-m-56 az91c-76; zinc chromate primer per mil-p-8585 w/enamel per tt-e-527 fed-std-595 color no. 37036

Properties:

Two or more different types of items having a common mounting or mounted on each other, which together form a portion of an indicator, azimuth-elevation-range, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.