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 6105-00-689-7799
NSN 5935-01-512-7077
NSN 6240-00-067-1021
NSN 5998-00-707-5781
NSN 5930-01-164-8285
NSN 6220-00-594-8817
NSN 6240-01-541-9715
NSN 5965-01-511-0402
NSN 5999-01-160-7145
NSN 6320-00-445-1187
NSN 5855-00-885-8452
NSN 5855-01-573-8397