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 5920-01-627-1782
NSN 5910-01-508-1302
NSN 6320-01-495-6893
NSN 5835-01-035-2976
NSN 6240-01-418-0282
NSN 6145-00-236-9504
NSN 6685-01-364-6997
NSN 6220-01-416-8487
NSN 6145-01-066-8709
NSN 6105-01-608-3974
NSN 6620-01-315-2414
NSN 5999-01-556-7931