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 6150-00-228-1587
NSN 6610-00-935-7131
NSN 5999-00-443-7972
NSN 6620-00-332-5550
NSN 5925-00-392-6164
NSN 5920-01-014-0611
NSN 6110-00-564-2804
NSN 5990-01-116-2181
NSN 5965-01-101-9094
NSN 5920-01-592-3416
NSN 6610-01-208-8639
NSN 5920-01-303-5951