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 5930-00-908-4535
NSN 6645-00-434-8793
NSN 5895-00-072-6326
NSN 2925-00-580-3018
NSN 5985-01-365-0188
NSN 5960-01-425-1454
NSN 6220-01-258-5466
NSN 5855-01-208-1471
NSN 5915-01-618-4057
NSN 5905-01-268-7517
NSN 5895-00-539-8322
NSN 5985-01-143-3798