A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5945-01-244-8435
NSN 5920-00-161-4564
NSN 6240-01-412-9337
NSN 5935-01-422-2094
NSN 6240-00-855-4518
NSN 6150-01-218-7591
NSN 5999-01-297-1547
NSN 6240-00-677-0305
NSN 5895-01-293-5613
NSN 6105-01-648-0247
NSN 6110-00-467-6329
NSN 5835-00-419-0575