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 6150-00-947-7658
NSN 6105-01-567-6714
NSN 5998-00-925-2241
NSN 6135-00-985-7845
NSN 5960-01-276-7836
NSN 5920-00-579-8434
NSN 6645-01-192-3061
NSN 5945-01-441-2854
NSN 6130-01-440-7554
NSN 5996-01-053-6305
NSN 6240-00-495-1301
NSN 5998-01-186-7289