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 6105-01-271-6508
NSN 6220-00-541-6742
NSN 5965-01-220-9200
NSN 5895-01-642-8973
NSN 6150-00-957-8392
NSN 5985-01-494-1739
NSN 5998-01-263-3790
NSN 2925-01-191-9668
NSN 7035-01-558-9618
NSN 7035-01-018-9629
NSN 5960-01-152-7740
NSN 5895-00-288-5878