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 5915-01-148-5271
NSN 6150-01-259-3318
NSN 5835-00-733-9145
NSN 5935-01-490-3993
NSN 6105-01-503-3974
NSN 5945-01-142-2182
NSN 5960-01-425-1454
NSN 5950-01-419-5463
NSN 5945-00-553-5831
NSN 5935-00-211-3578
NSN 4140-00-466-9268
NSN 6240-01-447-2838