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 6130-01-505-3754
NSN 5855-01-270-6847
NSN 6145-01-634-0388
NSN 6135-00-461-3590
NSN 6110-01-222-0396
NSN 5998-01-233-1563
NSN 5998-01-132-7458
NSN 5920-01-363-7063
NSN 5920-01-480-7007
NSN 6620-01-426-2220
NSN 5960-00-311-8787
NSN 5925-01-509-9040