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 5998-01-317-9904
NSN 5920-00-382-8849
NSN 5965-00-144-2543
NSN 5950-01-431-9068
NSN 6650-00-273-8732
NSN 5895-01-650-6917
NSN 5999-01-176-6481
NSN 5945-01-012-6654
NSN 6110-00-944-5592
NSN 4140-01-294-2671
NSN 5925-01-534-9760
NSN 5935-01-660-8905