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 5855-01-571-2658
NSN 5945-01-084-0783
NSN 4140-01-397-8445
NSN 6145-01-445-7167
NSN 6685-01-567-5894
NSN 5935-01-123-9900
NSN 5925-01-399-6777
NSN 6685-00-342-9408
NSN 5999-00-676-8452
NSN 5975-01-420-6591
NSN 5999-01-523-6249
NSN 5835-01-466-5496