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 5960-01-573-6483
NSN 5985-01-217-3162
NSN 6685-01-338-0867
NSN 5998-00-869-6599
NSN 2925-01-497-1364
NSN 6150-01-400-4211
NSN 6240-00-185-8367
NSN 6650-00-150-6885
NSN 5920-01-043-4848
NSN 6105-01-312-4218
NSN 5920-01-457-4653
NSN 5999-01-459-0532