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 5965-01-328-7526
NSN 2925-01-612-0405
NSN 6110-01-043-1796
NSN 5945-01-096-4276
NSN 5895-01-449-7551
NSN 6150-00-427-6500
NSN 6145-00-504-5221
NSN 5960-01-161-4754
NSN 5905-01-377-1137
NSN 5985-01-467-9502
NSN 5915-01-323-4389
NSN 6240-01-554-4548