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 6130-00-753-2807
NSN 6320-00-937-5625
NSN 5920-00-339-0338
NSN 5895-01-508-1844
NSN 5985-00-263-7870
NSN 5925-01-137-0159
NSN 5975-01-550-7634
NSN 6650-01-156-4660
NSN 6650-01-437-8852
NSN 4140-00-908-2763
NSN 5975-01-502-9662
NSN 6240-01-383-4695