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 6130-01-053-3398
NSN 6645-01-596-6077
NSN 6650-01-599-1796
NSN 5935-01-301-5312
NSN 5965-01-048-4767
NSN 5996-00-383-6173
NSN 6150-01-440-5718
NSN 6240-01-100-2597
NSN 5985-01-659-7687
NSN 5910-01-460-7318
NSN 6105-00-855-7787
NSN 5855-01-079-8716