Special Features:

Lexan polycarbonate material, filter material lexan polycarbonate, dimensions (approximate) 0.750 in. Sq. By 0.790 in. High, cap color white, filter color consists of 2 colors, white and green, key cap has a horizontal barrier in lens and a line engraved on top, legend characters shall be centered on key cap, top half of key cap reads "rcvr sens", bottom half reads "1", key caps are internally illuminated, note; colored filters used with white key caps are bonded to the inner lens base, the above information covers the requirements for a lens cap for a pushbutton switch, equipment application asr8

Properties:

An item usually marked with letter(s), numeral(s), or other character(s) designed to be attached to a key lever of a typewriter, accounting and calculating machien, office type composing machine keyboard or keyboard, data entry for the purpose of affording fingertip operation.