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 6685-00-208-0113
NSN 5920-00-711-1741
NSN 5965-01-359-8172
NSN 5999-01-186-6476
NSN 5945-01-078-6690
NSN 2925-01-097-0903
NSN 6650-01-449-1413
NSN 5998-01-029-3528
NSN 6240-01-464-4571
NSN 6105-00-226-1828
NSN 5895-01-129-4053
NSN 5950-01-080-1846