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 5985-01-130-9218
NSN 5999-00-972-9159
NSN 5960-01-024-7918
NSN 5915-01-538-7581
NSN 6240-01-394-2571
NSN 5996-01-386-2843
NSN 4140-01-164-4935
NSN 5960-01-370-4285
NSN 5855-01-435-2772
NSN 2925-01-156-9570
NSN 5835-00-568-2956
NSN 5920-01-522-4870