General Description:
Lexan or similar translucent material, dimensions approximate 0.688 in. Square by 0.562 in. High, white color, this key cap assembly., consisting of 1 each key cap and 1 each insert k plunger, has no engraving key caps are internally illuminated, this key cap is style or type j-825, this is a blank key, 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 2-128-004-61a, 2-128-004-62a, 2-128-004-64a
Federal Aviation Administration