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 6685-01-612-1723
NSN 5935-01-616-4799
NSN 6645-01-337-1806
NSN 5915-01-192-9000
NSN 6240-01-349-4407
NSN 6130-01-238-1164
NSN 6650-01-521-2077
NSN 5945-00-201-4203
NSN 5910-00-823-1998
NSN 6620-00-153-6291
NSN 5998-01-269-5363
NSN 5910-01-058-8444