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 5975-00-936-1790
NSN 5915-00-141-0410
NSN 5920-01-073-1231
NSN 5855-01-452-1406
NSN 5998-00-459-5842
NSN 5855-01-391-6914
NSN 5990-01-583-2870
NSN 5920-00-681-6464
NSN 5910-01-258-4887
NSN 6150-01-296-0003
NSN 6240-00-274-4028
NSN 5910-01-633-9963