Heat treated
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 4140-01-634-0330
NSN 5935-01-151-0654
NSN 6105-00-871-9058
NSN 5950-00-288-5994
NSN 5975-01-545-2621
NSN 4140-00-915-4607
NSN 5915-00-829-3559
NSN 5920-01-171-9139
NSN 7035-01-093-9544
NSN 5945-01-362-3328
NSN 5999-01-579-4737
NSN 5998-00-050-9370