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 5960-01-360-4107
NSN 5996-00-583-9498
NSN 6135-00-840-6451
NSN 4140-01-544-7602
NSN 5930-00-248-6288
NSN 5910-01-468-6806
NSN 6650-00-296-4670
NSN 6620-00-269-5168
NSN 6105-01-576-0309
NSN 5935-00-892-3059
NSN 6320-00-405-2348
NSN 5999-01-272-8968