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 5990-01-471-7858
NSN 5945-00-081-9140
NSN 6220-01-544-5793
NSN 5945-01-144-2264
NSN 5960-01-195-6905
NSN 6145-00-017-9707
NSN 5990-01-517-7848
NSN 5935-01-228-0718
NSN 7035-00-803-3056
NSN 6145-01-462-4399
NSN 5999-01-284-7706
NSN 4140-01-607-5998