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 5895-01-146-8625
NSN 6135-00-078-9931
NSN 5920-01-094-7284
NSN 5905-01-511-6605
NSN 5895-01-231-9895
NSN 5855-01-604-9997
NSN 5950-01-097-7149
NSN 5935-00-847-5127
NSN 6130-00-553-8758
NSN 6105-00-418-3654
NSN 6650-00-466-1697
NSN 2925-01-082-7248