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 5965-01-633-8849
NSN 6645-01-274-0731
NSN 6145-01-552-3576
NSN 5835-00-315-3797
NSN 5920-01-129-5886
NSN 5998-01-441-7964
NSN 5996-01-420-5839
NSN 5905-00-159-8238
NSN 5965-00-950-0602
NSN 6610-01-015-9798
NSN 4140-01-527-3438
NSN 5950-01-357-8129