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 6220-01-133-4286
NSN 5835-01-158-6878
NSN 5855-01-432-0524
NSN 5985-00-823-4645
NSN 5996-01-322-1486
NSN 5965-00-798-3597
NSN 5905-01-408-7477
NSN 5835-00-958-6231
NSN 5999-01-500-1835
NSN 5910-01-287-2267
NSN 5950-01-293-7674
NSN 5910-00-150-1216