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 6650-01-409-1992
NSN 5835-01-067-0075
NSN 5930-01-646-1842
NSN 5915-01-453-4298
NSN 6645-01-144-8627
NSN 6130-00-277-4402
NSN 6110-00-893-2349
NSN 6645-00-216-6126
NSN 5895-01-338-3838
NSN 6650-01-317-2101
NSN 6685-00-069-6777
NSN 6220-01-265-7144