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 6610-01-500-5046
NSN 6620-01-301-3258
NSN 5910-01-359-1966
NSN 6240-00-889-1825
NSN 5985-01-469-6065
NSN 5895-01-237-9592
NSN 5945-01-142-2182
NSN 6110-01-392-8049
NSN 5905-01-603-7668
NSN 7035-00-088-7355
NSN 5965-01-422-4763
NSN 2925-00-455-2367