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 5960-01-200-4621
NSN 5998-01-349-9264
NSN 5920-01-211-5557
NSN 5998-01-400-0343
NSN 6620-01-441-7896
NSN 6220-01-101-7317
NSN 5998-00-862-5511
NSN 5915-01-565-8717
NSN 6110-01-597-8686
NSN 6135-01-381-4675
NSN 6130-01-468-7722
NSN 5999-01-313-3923