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 4140-01-304-7563
NSN 5930-00-106-6067
NSN 6240-01-381-2275
NSN 5905-01-255-5910
NSN 6130-01-145-9359
NSN 6110-01-323-5273
NSN 5895-01-239-4059
NSN 6240-01-608-9563
NSN 2925-01-134-9175
NSN 5905-01-523-6000
NSN 5905-00-993-1188
NSN 5930-01-189-4043