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 6135-00-122-2420
NSN 4140-00-960-8222
NSN 5998-01-386-2872
NSN 6105-01-179-1365
NSN 5835-00-729-9305
NSN 5920-01-391-5666
NSN 5935-01-311-9958
NSN 5835-00-368-4182
NSN 5950-00-140-6816
NSN 5945-01-393-4182
NSN 5999-00-230-9304
NSN 6650-00-518-5194