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 5935-01-353-0553
NSN 2925-01-583-5619
NSN 5945-00-156-7256
NSN 5975-00-074-8732
NSN 6145-00-635-7920
NSN 5895-01-503-2979
NSN 6620-01-369-5876
NSN 6645-01-237-2568
NSN 6130-01-173-2651
NSN 6105-01-448-9380
NSN 5915-01-631-7144
NSN 6150-01-532-1456