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 5925-01-630-5564
NSN 6110-01-007-6111
NSN 5960-01-424-1781
NSN 6150-00-496-0332
NSN 4140-01-103-2216
NSN 6150-01-090-6691
NSN 6620-01-605-1465
NSN 6105-01-246-9076
NSN 5835-01-473-1620
NSN 2925-01-567-8027
NSN 5996-01-042-3421
NSN 5920-00-237-0995