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 6320-01-451-0821
NSN 6150-00-432-8345
NSN 5965-01-026-9865
NSN 2925-01-356-6017
NSN 6105-01-177-6619
NSN 6650-01-207-2905
NSN 2925-01-327-3069
NSN 5999-01-302-9824
NSN 5935-01-510-0741
NSN 6110-01-104-4299
NSN 4140-01-057-7863
NSN 5965-00-226-7870