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 5950-01-132-0762
NSN 6220-01-091-2470
NSN 6220-01-458-0909
NSN 5915-00-418-3849
NSN 6610-01-606-2144
NSN 6105-01-129-3832
NSN 5930-01-500-9919
NSN 6240-00-755-1432
NSN 6145-00-317-2087
NSN 5950-01-607-6625
NSN 5910-00-007-4176
NSN 5920-01-145-5805