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 5965-00-208-4896
NSN 6685-01-440-0716
NSN 5930-01-141-6901
NSN 6610-01-503-0153
NSN 5920-01-182-8745
NSN 5935-01-400-3518
NSN 5965-01-523-8737
NSN 4140-01-530-4378
NSN 6320-01-173-7950
NSN 5998-00-083-6480
NSN 6320-01-352-5653
NSN 6150-00-334-0331