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 5998-01-643-2402
NSN 5920-00-895-3270
NSN 6645-01-350-3138
NSN 6650-01-632-3135
NSN 5965-00-734-5053
NSN 5920-00-601-2390
NSN 5998-00-970-6473
NSN 2925-01-604-8984
NSN 5915-01-497-9945
NSN 5945-01-463-6769
NSN 5930-00-729-8161
NSN 6610-00-520-1837