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 6220-00-081-5558
NSN 5930-01-457-3610
NSN 6110-00-504-2441
NSN 5855-01-464-3152
NSN 6135-00-100-8890
NSN 5985-01-174-3324
NSN 5945-00-150-3034
NSN 6135-01-422-1440
NSN 5835-01-492-4318
NSN 6150-01-258-6585
NSN 5855-01-169-4275
NSN 5999-01-458-3725