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 6620-01-426-2220
NSN 5935-01-464-4230
NSN 6650-01-490-3811
NSN 6105-01-459-1179
NSN 5835-00-725-2087
NSN 5996-00-540-6570
NSN 6130-00-725-6913
NSN 5895-01-383-4853
NSN 5835-00-847-7277
NSN 5895-01-325-4801
NSN 5935-01-629-2761
NSN 5910-00-003-7795