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 5985-01-552-9081
NSN 6105-01-589-1215
NSN 5998-00-506-7445
NSN 5855-01-400-1590
NSN 5855-01-266-1645
NSN 5930-01-499-3312
NSN 6645-01-607-7931
NSN 6130-01-328-3998
NSN 6150-01-391-7118
NSN 6240-00-578-7894
NSN 5960-00-188-3899
NSN 5895-01-590-0165