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 6610-00-141-0393
NSN 5999-01-392-1989
NSN 5910-00-227-0848
NSN 5930-01-581-2128
NSN 5985-00-260-1434
NSN 6685-01-596-5391
NSN 5985-00-163-9180
NSN 5935-01-496-2825
NSN 5990-00-740-0249
NSN 6135-00-321-6707
NSN 5855-01-147-6024
NSN 6110-00-269-2696