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 5935-00-204-7843
NSN 5950-00-891-9554
NSN 5990-01-258-3848
NSN 5945-01-441-3395
NSN 5855-01-524-9353
NSN 5835-01-408-7576
NSN 5905-01-640-6947
NSN 5905-01-462-4304
NSN 6645-01-215-0617
NSN 2925-01-569-5471
NSN 5835-00-998-5757
NSN 5855-01-054-9014