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 2925-01-463-8856
NSN 5999-01-204-5114
NSN 5965-00-894-0015
NSN 5855-00-058-1293
NSN 2925-00-878-2196
NSN 6220-00-939-8609
NSN 5935-01-461-4307
NSN 5985-01-115-0822
NSN 5835-01-580-0446
NSN 5996-01-506-4213
NSN 6240-01-319-2549
NSN 5945-01-423-1009