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 5990-01-276-3686
NSN 5960-01-623-9896
NSN 6645-00-256-4072
NSN 6150-01-516-7562
NSN 5965-00-630-7872
NSN 6220-01-645-1759
NSN 5999-00-232-3956
NSN 5910-01-385-6680
NSN 6645-01-524-7027
NSN 5990-01-579-2711
NSN 5855-01-424-2769
NSN 5930-01-587-6626