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 5925-01-229-7536
NSN 5999-01-530-1796
NSN 5895-00-359-3834
NSN 5895-01-270-7071
NSN 6320-00-391-5906
NSN 7035-00-478-4596
NSN 6130-01-152-4573
NSN 6610-01-368-8344
NSN 5998-01-453-1913
NSN 5925-01-265-7749
NSN 6110-01-336-9546
NSN 5950-00-851-2653