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 5925-00-342-3637
NSN 5925-01-167-8144
NSN 5999-00-218-4743
NSN 6130-01-546-5555
NSN 5925-01-097-7046
NSN 5945-01-526-2104
NSN 5960-01-136-5737
NSN 6145-01-350-3532
NSN 6220-00-872-7291
NSN 6145-01-469-5821
NSN 4140-01-257-2676
NSN 5935-01-237-0078