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 4140-01-502-6496
NSN 6150-00-168-2882
NSN 6110-01-540-8733
NSN 2925-01-140-7614
NSN 5895-00-246-4415
NSN 5930-00-450-9922
NSN 6320-00-422-9006
NSN 5960-00-869-2853
NSN 6105-01-418-1877
NSN 5930-01-529-5273
NSN 6610-01-167-8747
NSN 5945-00-065-8862