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 6110-01-147-4371
NSN 5930-00-518-4790
NSN 6240-00-422-1278
NSN 6240-00-275-1950
NSN 5999-00-179-0149
NSN 5996-00-044-3254
NSN 6320-00-925-0558
NSN 6240-01-069-4711
NSN 6620-00-399-0087
NSN 6150-01-419-2693
NSN 5935-01-488-5601
NSN 5855-01-301-0158