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 6145-01-346-1704
NSN 5835-01-416-6455
NSN 6150-01-145-5156
NSN 6320-00-564-2772
NSN 6105-01-550-4822
NSN 5855-00-150-1820
NSN 5999-00-232-3130
NSN 5895-00-837-2343
NSN 6145-00-130-8078
NSN 6620-01-183-5329
NSN 6110-00-157-1699
NSN 6685-01-227-2621