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 5998-00-391-8662
NSN 5990-00-254-4825
NSN 6240-01-340-7591
NSN 5925-01-135-3744
NSN 5835-01-044-2628
NSN 6240-01-250-3574
NSN 5915-01-159-7016
NSN 6110-01-436-4275
NSN 5950-01-429-7764
NSN 6620-01-426-2220
NSN 5975-01-144-5115
NSN 4140-00-485-6958