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 5999-01-349-3652
NSN 5910-00-039-9074
NSN 5855-01-103-1474
NSN 6110-01-443-3785
NSN 5945-00-355-1158
NSN 5835-00-180-7555
NSN 6150-01-654-6832
NSN 5930-01-334-3372
NSN 5935-01-408-5118
NSN 5999-01-472-3025
NSN 6240-01-367-3656
NSN 6220-01-006-3057