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 6685-01-600-7649
NSN 5945-01-173-9453
NSN 6650-01-519-9165
NSN 5935-00-057-8780
NSN 6105-01-271-4922
NSN 5935-01-215-1919
NSN 6650-00-466-1697
NSN 5945-01-383-2693
NSN 6610-01-346-8241
NSN 5999-00-103-3959
NSN 6220-01-243-9971
NSN 5895-00-995-6190