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 5960-01-297-2665
NSN 5930-01-116-0890
NSN 2925-01-087-9290
NSN 5925-01-487-6830
NSN 5835-00-880-6477
NSN 5895-01-037-7112
NSN 5960-01-434-5539
NSN 6135-00-819-8074
NSN 2925-01-537-2069
NSN 5998-01-144-3540
NSN 5930-01-367-1857
NSN 5998-00-175-9568