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 5990-01-517-7848
NSN 5925-01-549-1981
NSN 5905-01-297-0103
NSN 6610-01-182-1182
NSN 6650-01-416-0473
NSN 6110-01-606-6548
NSN 6240-01-512-1856
NSN 6150-01-417-3587
NSN 5915-00-371-9450
NSN 6110-00-840-6560
NSN 6650-01-399-0628
NSN 5895-01-414-6699