General Description:
2221 lexan translucent material, dimensions approximate 0.688 in. Square by 0.562 in. High, blue color, this key cap assembly., consisting of 1 ea. Key cap and 1 ea. Insert k plunger has black engraving, the characters to be 0.125 in. High and 0.020 in. Line width, the engraved lettering shall be opaque so lettering will appear black in a darkened room key caps are internally illuminated, this key cap is style or type j-2221, the character s asterisk accent sign asterisk and asterisk 2 asterisk are engraved on this key cap, application data, p/o, key module assembly., texas instruments, inc., p/n, 684579-2, end item, automated radar terminal system - arts iii, texas instruments, inc., p/n 729408-1, manufacturer data, george risk industries, inc., 24229 columbus, nebraska, p/n, 2-128-004-33a
