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 6610-01-328-3400
NSN 5855-01-323-5394
NSN 6240-01-338-1773
NSN 5985-00-819-1085
NSN 5935-01-398-6894
NSN 5998-00-803-3067
NSN 5965-01-179-3174
NSN 6240-01-166-1807
NSN 5835-00-491-3834
NSN 5985-00-203-1200
NSN 6130-01-414-2018
NSN 5835-01-424-0054