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 6650-01-442-7893
NSN 5925-00-944-3848
NSN 6145-01-347-2403
NSN 5999-01-535-5719
NSN 5835-01-328-6626
NSN 5935-01-562-7871
NSN 5935-01-423-1324
NSN 5999-01-516-1125
NSN 5945-01-327-7427
NSN 5935-01-433-9476
NSN 6620-01-288-8249
NSN 6110-01-506-7141