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 6240-01-295-7324
NSN 6130-00-458-8372
NSN 5945-00-684-8160
NSN 5915-01-423-8561
NSN 5895-01-203-1870
NSN 5990-01-124-9063
NSN 5930-01-416-2973
NSN 6135-01-202-8113
NSN 5998-01-400-6739
NSN 2925-01-055-7607
NSN 6685-01-621-2967
NSN 6130-01-348-7376