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 6110-01-360-6808
NSN 5855-01-125-9167
NSN 5905-00-908-5788
NSN 5960-00-692-2887
NSN 6105-00-839-8336
NSN 6240-01-438-1157
NSN 5990-01-123-1216
NSN 5975-00-160-0256
NSN 5905-00-282-6853
NSN 4140-01-055-6355
NSN 5965-01-161-3405
NSN 6145-00-174-9344