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 5855-01-623-0645
NSN 5975-01-228-1932
NSN 5996-01-379-3998
NSN 5835-01-290-9763
NSN 5935-01-197-6849
NSN 5905-01-391-3158
NSN 5998-01-248-8003
NSN 5950-01-446-1106
NSN 5945-01-578-3340
NSN 7035-01-112-1054
NSN 6135-00-488-4478
NSN 6610-01-336-8027