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 5905-01-522-3660
NSN 6110-01-529-1205
NSN 6320-01-172-6103
NSN 5915-00-075-1086
NSN 5950-01-196-5715
NSN 5960-00-215-5884
NSN 5835-01-250-2939
NSN 5945-00-753-9730
NSN 6110-01-253-3278
NSN 5935-01-572-8278
NSN 6135-00-777-5562
NSN 5999-01-411-5135