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 6240-01-494-9861
NSN 5925-00-078-9566
NSN 7035-01-359-3915
NSN 5855-00-327-2112
NSN 6130-01-412-1320
NSN 5960-00-450-2229
NSN 5950-00-172-9162
NSN 5990-01-370-4785
NSN 5895-00-085-3544
NSN 5935-01-408-1114
NSN 6145-01-412-0926
NSN 5835-01-384-3206